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Bose QuietComfort 20 Acoustic Noise Cancelling Headphones Apple Devices Black by Review Summary ,  Sep 9, 2015

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Bose QuietComfort 20 Acoustic Noise Cancelling Headphones, Apple Devices, Black
Report Date: 01/02/2016
Based on 1980 customer reviews
Overall satisfaction: 4.4
Returned or considering to return: 5.2%

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Frequently Mentioned by Customers:


Individual Feature Rating
Acoustic5.0   above average
Expectation5.0   above average
Light5.0   above average
Travel4.9   above average
Video4.8   above average
iPhone4.8   above average
Commute4.7   above average
Comfortable4.6   average
Portable4.6   average
Response4.6   above average
Setting4.6   above average
Fit4.5   average
Noise4.3   average
Music4.2   average
Quality4.2   average
Sound4.2   average
Price4.1   below average
Recharge3.7   below average
Size3.7   average
USB3.7   average
Control3.6   below average
Frequency3.5   below average
Noise-cancellation3.5   below average
Remote3.5   average
Loud3.4   below average
Battery3.3   below average
Rubber3.3   below average
Voice3.3   below average
Plug2.8   below average
Power2.8   below average
Cable2.7   below average
Clip2.7   below average
Connection2.5   below average
Warranty2.3   below average
Connector2.1   below average
Plastic1.5   mediocre


Quotes from the Reviews - What People Say about:

Acoustic

Acoustic:
"These Bose QC 20i (QC 20 are the non-iOS model) in ear acoustic noise canceling headphones are amazing."
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"When you pay $300 for earbuds - you expect quality and durability - Bose quiet comfort 20 acoustic noise cancelling earbuds miss the mark on durability."
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"These BOSE QUIETCOMFORT 20 ACOUSTIC NOISE CANCELLING HEADPHONES are perfect for me, because:(1) I love the amplified Bose sound;(2) they're comfortable, lightweight earbuds that don't make my ears hurt like over-ear headphones do;(3) they don't bleed sound when they're plugged into the iPad Air2 jack;(4) the noise-cancelling feature is awesome in the way it filters out sound from the surrounding room;(5) there's a button that instantly switches off the noise-cancelling feature when you need to be aware of some sounds in your environment;(6) the battery charges in about two hours, and provides 16 hours of sound;(7) I can still listen to music through the earphones when the battery runs out;(8) the earphones are fitted with soft earpieces (S, M, L sizes included) that keep them from falling out of my ears whenever I move; and(9) the earphones come with a semi-hard protective zippered case for carrying and storing."
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"If youre looking for noise cancelling headphones, the Bose QuietComfort 20 acoustic noise cancelling headphones are comfortable and perform well."
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"The Bose Quiet Comfort Acoustic Noise Cancelling headphones is one such product, on both counts."
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Battery

Battery:
"One downside is it's internal, rechargeable and non-replaceable battery does not last as long a my old Bose unit, which has replaceable batteries."
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"Only drawback is that the battery in the noise-cancelling unit is not replaceable, so when it goes I'll have to dump a ~$200 pair of earphones - not cool on so many levels."
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"I can use these even when the battery is dead, but they claim 16-hours!"
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"the only thing is that the battery is a kind of uncomfortable and the battery life is not that long."
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"Short cable length from battery unit to phone which is actually very awkward with no good place to put the battery unit."
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"The buds are comfortable and the battery pack is smaller than I thought it would be."
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"- The LED is on one side of the device - very easy not to notice that it's on, and run down the battery."
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"These have great battery life as I can easily get from Asia to north america on one charge."
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"Good sound even in noisy surroundings, great noise cancellation, light weight and practical case, battery is good for more than 10 hours."
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"great product, love the highs and the lows, the fact that the earbuds still work even after battery has discharged make these a great buy."
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Button

Button:
"The buttons broke a little after it was out of warranty."
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"The + and - on the volume button is almost impossible to see and the way the buttons click doesn't give me confidence they will stay put in the controller for long.5) the actual ear pieces are good and look well made and come with S M L ear fittings.6) the unit that holds the rechargeable battery again looks cheap and feels like a $2.00 item."
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"Just wanted to put this out there for everyone that if you buy this, don't be surprised if a button fails on you after a year."
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"Though the audio pause start and noise-cancelling stop start buttons have now have to be pressed hard to activate."
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"THIS IS TERRIBLE, because it means you can't get to the pause button in the wintertime unless you unzip your coat and freeze your hands and chest, instead of just reaching up by your ear.2) they have the ear buds too big so they take up more room in your ear, and EVEN WITH THE SOUND CANCEL OFF COMPLETELY you cannot wear them and carry on a conversation."
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"The MIC works on my Nexus 4 tho (but no mute which would have been great).- Since the buttons are not interchangeable (like in the QC-15), you're stuck with what you got."
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"The pause and talk-through buttons make flying a lot easier."
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"The cancellation is perfect, however, the button to control volume and the one to turn on cancellation are too far away compared to other headphones."
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"The Good:-Takes the concept of a mute button from your TV and applies it to real-life noise pollution."
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"I am on a few flights each week and it is a wonderful feeling to slide that button to green and silence!"
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"The looks on their faces as the background noise disappeared at the touch of a button was always a wonderful thing to observe!"
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Cable

Cable:
"My only gripe is the ugly teal color that is on the power cord, I don't see why they couldn't leave well enough alone and go all black or all white...teal, come on! "
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"I do have a couple of minor criticisms though:- The box on the cord is only a few inches from the plug, which makes it sort of a clumsy fit at times."
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"Several people mentioned that the amp being near the plugin makes your device difficult to take in and out of your pocket without feeling like you are damaging the headphone cord."
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"HOWEVER BEWARE that the cord on Bose starts falling apart around 6 months and they offer no warranty on that."
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"The cord itself is durable, but its where the cord connects to the sound canceling device is the problem."
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"The control is misplaced and you have to clip it just under the control unit causing the cord from the unit to your esr to be too long."
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"I was afraid the cord would get ripped out, but so far no problems there- The microphone or the cell phone integration requires that you hold the cord splitter for the conversation to hear you."
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"The cord itself is durable, but its where the cord connects to the sound canceling device is the problem."
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"In summary:>> Pros- super comfortable, no need to wrap earphone cable around ear- multiple ear size choices - try for both ears (mine differed)- surprisingly good sound, despite Bose signature sound profile remarkably clear mid-range, if not a bit too forward crisp and controlled, but slightly over-emphasized bass de-emphasized treble- outstanding battery life, way beyond the claimed 12-hoursCons- maximum volume level isn't as loud as other earphones should only be an issue for those already hard of hearing- dramatically worse sound quality when active noise circuit is off- white noise when noise circuit is turned on not noticeable in louder environments (eg."
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"My daily in-ear headphones are $500 Sure e535's which are in a class of their own - three drivers, super accurate (flat) sound profile, replaceable cables."
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Clip

Clip:
"The control is misplaced and you have to clip it just under the control unit causing the cord from the unit to your esr to be too long."
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"The weight of the control unit on the cord makes it a little annoying to walk around with the earbuds in but there is a little clip on the cord designed to clip onto your clothing and transfer the weight from the earbuds making them less prone to popping out."
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"AND the little mic is great for the show - I wasn't expecting to be able to use a dangling mic but it has a clip so I can keep it in the proper position and it's clear as a bell."
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"- Weak clip."
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"The plastic clip designed to attach to a collar or piece of clothing is really weak -- when I would accidentally pull my headphones w o realizing the clip was still attached, the clip itself would detach from the cord and remain on my shirt or jacket."
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"It broke after about 1 month, but the store replaced the clip, 5."
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"I have struggled to find s comfortable position but no matter where I clip it it just feels to long and heavy."
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"Even a clip would have been nice."
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"The earbuds themselves are super comfortable and the stayhear clips help them to stay put in your ears with no discomfort."
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"I've had other in-ear headphones with the inner-ear clip piece, but whatever Bose made theirs from is outstanding and comfortable."
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"I can wear these for hours with no discomfort, and they stay in place.+The little clip on the cable: Such a simple addition but it is pretty clever."
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Comfortable

Comfortable:
"Also, I wear glasses and over ear headphones can be painful, but these are totally comfortable."
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"i suppose if you are just sitting without being active they would be ok, but in my opinion Bose have missed the mark on comfort design.2."
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"Comfort level of ear plugs not perfect but pretty good."
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"Pros:Great noise cancellingGreat battery life (I have yet to run it dead even after 6+ hours)Comfortable even after very long periods of timeCons:The rubber ear pieces fit well initially, but they seem to lose shape and deteriorate relatively quickly."
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"I never liked in-ear buds, but the qc20's are incredibly comfortable."
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"The 20i is a fine compromise with excellent comfort, effective noise cancellation, and pleasing audio quality."
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"The in-ear thing is pretty comfortable."
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"Great comfort and sound, but noise canceling wasn't worth the price."
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"While the sound quality is nice and the earbuds are comfortable and effective the real star here is the noise cancelling technology."
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"Very comfortable to wear as well."
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"Earpiece fit is wonderful and comfortable."
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Commute

Commute:
"They'd probably be fine on an airplane or train where the ride is fairly smooth, but on my bumpy, bouncy bus commute, they would constantly be making *PAINFUL* popping noises."
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"I use them on flights and on commuter train trips and they are perfect! "
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"Yes, I definitely recommend this device and use it almost daily while commuting and to get quiet surroundings for work."
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"So I'm stuck rearranging everything at every point in my commute just to enjoy that silky quietness."
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"Yes, they are amazingly brilliant indoors, but I wear them for my commute to and from work."
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"I love this and I use it when I commute on the bus and also while I am walking in the city up to 2 hours a day."
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Connection

Connection:
"However, after 9 months, the earphone connection part broke in half with wires exposed from inside."
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"Loved them for 10 months and then the connection failed and I couldn't used the device for making phone calls."
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"Contrary to some of the reviews, I don't personally find the battery, which is connected very closely to the phone jack, particularly annoying."
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"Over time (4 months) this will and has started to cause a slight connection problems sometimes that casuses scratchy sound - i imagine will only get worse and of course then i'm out $300.I try to be EXTREMELY careful with them and there is a slight flicker in sound sometimes now because of a failing connection."
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"The problem here is the lanyard and control set is connected to both L and R sides of the lanyard - that means you cannot control how high or low the controls sit - it's fixed, you cannot move it.4."
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"I generally used my QC20's at my desk, where it was easy to keep the amplifier connected to a free USB port, so I can't speak to its battery life, but by all accounts it is excellent."
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"I love the fact that I only need a USB connection to re-charge and not batteries or some custom power adapter."
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"When you try them in the bose store, they are connected to the perfect audio out put source."
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"Attached to that 2 piece of wire is a 3 x 1 battery pack and control for the noise cancelling as well as a micro USB connection to recharge the battery which powers the noise cancelling."
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"If the round cord is twisted, it tends to want to twist while wearing the earbuds, which exacerbates the irritating rubbing on my neck and the tendency of the earbuds to shift and want to lose a good sonic connection with my ear canal when I move my head slightly."
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Connector

Connector:
"Choice of using an elbow jack instead of a straight jack exacerbates the problem mentioned above."
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"If they could only place the battery pack a few inches higher on the cord, it would be a huge improvement, and may reduce strain on the headphone jack that may be damaging the cable (see point #3)3."
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"The silencing bob is a bit annoying, and the connector to the input device should be longer, up to 6 for better utility when using it to listen while cycling."
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"Contrary to some of the reviews, I don't personally find the battery, which is connected very closely to the phone jack, particularly annoying."
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"It is a suboptimal design in my opinion2) I think the cables are of uneven length at the base of the jack - it would need to be longer to be convenient as the power unit is way too close to the jack which doesn't work well with some device."
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"I used these headphones to watch a movie, but afterwards, I unplugged them from the audio jack and just enjoyed the silence."
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"Finally, the device is charged through a standard mini-USB connector, and holds the charge very well, and even if the battery runs out the device will continue to work as conventional earphones."
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"Cables that go from earbuds to the rectangular power unit are good, but the one that goes from the unit to your audio jack looks like an afterthought, its far too short and much cheeper (thinner gauge)."
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"- Cancels only selective frequency: Train announcements and voices from people can still be heard (these sounds get slightly muted almost to whisper, so are not bothersome at all) - I did not have the problem with the dongle (nice cancelling unit) which is just few cm next to the jack."
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"Definitely a happy customer, although I wish that their jack would fit into my life proof case without requiring an extender which sometimes allows the volume control to work and sometimes not."
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Control

Control:
"The control is misplaced and you have to clip it just under the control unit causing the cord from the unit to your esr to be too long."
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"The little switch that controls aware mode is just not very durable and sooner or later it will fail."
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"The weight of the control unit on the cord makes it a little annoying to walk around with the earbuds in but there is a little clip on the cord designed to clip onto your clothing and transfer the weight from the earbuds making them less prone to popping out."
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"Only downside is there is no inline volume control for Android phones."
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"Very disappointed in these headphones, primarily from a quality control standpoint."
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"The controls are simple yet effective with my Galaxy S6."
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"The mic volume controls hang exactly where I would expect them to, and the cord is an adequate length without being too long."
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"100% compatible with iPhone earbud controls, you can easily jump next, previous, fast forward backward etc., which is huge plus to me."
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"Comfort I could have gotten used to, but lack of noise control made these not worth the effort."
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"The controls are easy to use and access."
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Cord

Cord:
"For these it is not possible to replace broken cords."
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"The cords are thick enough to not easily tangle, and the slim rubberized battery case easily folds flat behind my iPhone."
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"$300 may seem like a lot to pay, but after adding up all the replacement headphones I've purchased in a year prior to buying the Bose, and all the problems I've had with cords breaking, wires getting exposed, earpieces failing and or breaking, I deemed the Bose worth the investment."
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"However, THE CORDS ARE VERRY, VERY FLIMSY AND CHEAP AND BOSE WARRANTY DOES NOT COVER CORDS!"
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"I myself wish that the pack and removable cords so it can be service easily and different lengths of cables and be used."
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"Pros:+Quietness+Fit+Comfort+Battery life+Tangle free cord+Small stereo plug+Still useable with noise cancelling off or with a dead batteryCons:-Position of battery-Color of cord"
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"I did also wear these at night while sleeping and were comfortable, but you may want to use caution because of the cords."
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"I did not have any problem with the cords, but you should watch out for getting them around your neck while sleeping."
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"They have very robust cords and I used them for both flight entertainment, iphone music and simply on for sleeping."
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Expectation

Expectation:
"I had a pair of the regular Bose earbuds and got these as an upgrade as my office was quite noisy and they exceeded my expectations."
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"The noise cancelling is amazing and exceeded my expectations."
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"With that disclaimer, the sound quality for the QC20's exceeded my expectations."
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"My expectations:* Able to reduce outside noise interference, so that I can concentrate on my studies or work The noise interference is markedly reduced when the cancellation is switched on, without any music."
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"I can't say enough about these high-quality earbuds, and for that reason I'll conclude this review by giving them my highest recommendation and to warn you to have your expectations exceeded by leaps and bounds."
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Fit

Fit:
"Bose is known for its amazing headphones, these noise canceling headphones work well, not as good as over or on ear headphones for obvious reasons but these fit very comfortably and holds a long charge."
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"I haven't really bothered with those because I heard it's a tight fit on the head and I won't get a good seal because I wear glasses."
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"Without good fit, the headphones aren't really usable."
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"They rest much more easily in the ear, easy to put in, but a good fit - and not easily pulled out."
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"The fitting was not good may be because of the small ear I have."
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"The only issue I have with them is that they are not a perfect fit (but that could just be the shape of my ears! )"
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"These fit comfortably yet snugly in my ears and work great."
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"Great fit, really drowns out the noise of the engines on a plane, or really anything else."
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"Earpiece fit is wonderful and comfortable."
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"the case fits the headphones well and i would be careful with tossing these in a bag because ive had many bose headphone wires break so wind them up loosely and store in case when not in use."
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"Till then these will fit the bill, they are the best noise cancelling earbuds I've ever used."
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Focus

Focus:
"I think listening to music with any earbuds at a comfortable volume can usually cancel out enough outside noise for me, but for just pure noise cancellation without music, these could be well worth the money if helps you relax and or focus and be more productive."
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"If you get easily distracted, have trouble focusing at the office, work in noisy locations, fly, have an office near the laundry room, or simply want to mute everything else so you can enjoy explosions and bullets on Call of Duty...these are for you."
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"If you travel a lot or are looking for an excellent product to lock out the world and focus, you can't go wrong with these earphones! "
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"So if they help me be more efficient with my time by helping me focus, free from audible distraction, then they are definitely adding some value to my life."
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"They put you into an isolation zone & its really easy to focus get work done."
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"The noise canceling feature in these ear buds are great, you can real tune everything out and focus on the task at hand."
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Frequency

Frequency:
"In case you have not researched much, know that they do NOT do a very good job of drowning out noises that are higher frequency, especially when closer, such as someone talking."
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"Not so great in the high frequencies as the lower frequencies, but the overall effect on ambient noise is great."
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"The only negative thing I can say about Bose in general is the frequency response isn't flat across the spectrum, but again, my main reason to buy was noise cancelation."
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"Actually the noise cancelling functions quite good, but I could still feel some high frequency noise, which is not easy to detect."
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"The fidelity of sound is just perfect for my ears, that are missing some of the higher frequencies, when the switch is on."
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"If you've looked at other reviews and tests of the QC20s, you'll see that they're particularly effective at the frequencies associated with airplane engines."
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"It does work better than QC15, especially in the lower frequencies- Good sound quality (B rating)."
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"The amount of low frequency canceling on this thing is amazing."
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"These earbuds are amazing at canceling out that low frequency noise (buzzing furnace, car engines, bass)."
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"If you fly with any amount of frequency then I would highly recommend own a pair of these headphones."
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Heavy

Heavy:
"They have fantastic clarity and will bring new light to the tiny details of your music that you haven't heard before (also missing from the Bose QC20) and while they don't have heavy bass (don't buy if that's really what you want) they have enough bass (the way music is meant to be listened to) with the proper seal in your ear."
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"only two drawbacks:- kinda heavy due to the noise cancellation engine- the mic sound level is not as good as expected"
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"They're heavy and just not all that good for workouts or even studying reading in my opinion."
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"People who like a heavy bass sound may be disappointed, but the sound was very true with lows, mids, and highs coming across evenly."
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"Highly recommended for the heavy travellers, otherwise you might be better off with a quality pair of headphones without the noise cancelling feature."
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"Good sound, bass heavy, comfortable fit, good noise cancellation... the battery pack that comes built in is BULKY.. bigger than expected."
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"Rechargable battery is great and lasted a full week of heavy use, recharging in an hour and half."
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"In practice, if you put your phone in your pocket (which is my guess as to why this was designed this way) it is no problem, but if you have your device anywhere else, then you now have a heavy weight hanging from your device..."
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"Headphones require more than an iPhone to power them and they are not practical due to sound leakage, comfort (heavy, hot, and pressure from brace), size, and lack of noise reduction."
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Light

Light:
"Good sound even in noisy surroundings, great noise cancellation, light weight and practical case, battery is good for more than 10 hours."
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"light weight and easy to carry in a pocket."
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"Great for traveling light."
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"Finally no sweaty ears, great noise cancelling and small light weight package to carry, and a microphone for phone calls."
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"I was afraid the little electronic part on the cable would be cumbersome, but its really not bad as its thin and light and has a nice rubberized coating."
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Loud

Loud:
"Worst of it all, this version makes a loud popping noise when you turn off noise cancelling."
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"They virtually eliminate annoying noise if it's not too loud."
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"My only quibble is that you get some weird, loud noises when you, say, disconnect the audio jack w o shutting off the power."
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"Problem is: wife has the TV up loud and I can barely hear my match of COD."
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"No longer am I distracted by that annoying person talking too loud next to me."
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"I was hesitant to spend this amount of money on headphones, but after the return of SOL Republics (didn't love the sound), and craving noise-canceling (loud, open work area), I took the plunge."
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"They were a Christmas gift from my mother since I work around loud lab equipment in an oil well cement lab that I run."
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"He had me use them while I mowed the grass (riding lawn tractor, John Deere, pretty loud)."
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"Works so well you don't even realize how loud you're listening until you take it off your ears....so be careful about that lol."
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"Muffles loud noise nicely and are very comfortable."
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"I'm VERY picky about high quality sound and I love it loud."
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Music

Music:
"The quality of music is not as good as on some non noise canceling headsets but definitely ok and better than other noise cancelling headsets."
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"These are not very good headphones for music, but for their size they do a good job of canceling airplane nose and for listening to movies."
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"I think listening to music with any earbuds at a comfortable volume can usually cancel out enough outside noise for me, but for just pure noise cancellation without music, these could be well worth the money if helps you relax and or focus and be more productive."
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"It doesn't matter if you are listening to music or podcasts, the sound is painful."
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"On the other hand, synthesized pop and electronic music sounds great and although not as clear as the reference headphones, this is a definite sweet spot for these Bose earphones."
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"Sadly for me and my use with playing music I may not be able to use these earphones for all activities due to the battery."
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"I have a Bose Bluetooth earpiece that I love for talking on my phone or for wirelessly listening to music or a book from my phone."
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"When music was being played I couldn't hear anything but the music, which was nice."
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"Rather than go on about things people have already mentioned, I will say what I enjoy most about these is being able to enjoy music without having to blast it to compensate for a noisy environment."
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"And regardless of what others have said, I am an audiophile, I also compose and record my own music, and I think these have great fidelity (when powered on)I am surprised at one of my favorite features of this headset however."
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"They sound great with music and audio books as well."
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Noise

Noise:
"Unfortunately just about a month ago the right ear's noise cancelling went a bit wonky and stopped working."
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"The sound of the headphones wasn't great with the noise cancellation off and decent with it on."
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"The only problem i have is that you can't run with the noise cancelling function on."
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"They do not do a good job with other noises."
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"The design of the ear piece is a disaster, they do not seat well and hence the effectiveness of the noise cancelling is greatly reduced."
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"The quality of music is not as good as on some non noise canceling headsets but definitely ok and better than other noise cancelling headsets."
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"The noise cancelling feature really is great in high noise environments, and the added feature aware mode is really the best way to have conference calls."
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"Overall I would say the actual sound quality is slightly less than my old S4s, though with the noise cancellation on they sound pretty good."
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"They are amazing at blocking out the cabin and engine noise of the airplanes!"
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"They are very good at noise cancelling, especially for their size."
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Noise-cancellation

Noise-cancellation:
"Only drawback is that the battery in the noise-cancelling unit is not replaceable, so when it goes I'll have to dump a ~$200 pair of earphones - not cool on so many levels."
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"It's very painful, and now I always turn off the noise-cancelling before i adjust that particular earpiece."
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"one of the earbuds (right ear) has developed a bad habit of squealing very loudly when the noise-cancelling is on, and I attempt to adjust the earpiece in any way."
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"Unlike the larger QC25 headset, which runs on AAAs, the QC20 does have a USB-charging built-in Li-ion battery, which is pleasantly flat and thin but doesn't allow you to change batteries to extend the noise-cancelling running time (a major disadvantage for long flights)."
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"I have tried noise-cancelling headphones in the past, but was always somewhat disappointed with the quality-to-cost ratio."
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"Then, the right ear's speaker failed, and it would only produce high-pitched sounds, even with the noise-cancellation system completely turned off."
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"Noise cancellation is almost as good as the Bose noise-cancelling headphones."
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"Because these headphones are in-ear, I believe that the noise-cancellation function on the Q20i headphones are a bit superior than the Q25 over-the-ear headphones which are around $100 more expensive."
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"These earphones put out amazing sound, and the noise-cancelling is FAR better than the others I've tried."
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"If you don't mind the added bulk of the noise cancelling amplifier, and you aren't concerned by the lack of a replaceable battery or by the price, the QC20's make an excellent choice for noise-cancelling earbuds."
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"Pros - Fantastic noise-cancelling feature, works well and actually improve the clarity of sound."
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Packaging

Packaging:
"Here are highlights: Elegant and frustration free packaging."
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"Overall the quality is really good - I didn't expect such good performance in a small package like this."
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"They were shipped in a timely matter and well packaged."
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"I have never heard so much clean bass from such a small package - and the mids and highs are as good as any earbuds I have worn."
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"It adds more bulk than earbuds would typically have, but even with it, and the micro-USB charging cable, the earbuds compress neatly into a small, light package that fits easily in the included case."
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"The fabric carrying case is flat and thin as well; the whole package is quite svelte considering how much technology is packed into it."
_
"The packaging and presentation are nice as always with Bose products; an attractive cardboard outer box contains nothing but some minimal foam padding, manuals (mostly stuffed into the fabric carrying case), and the headphones and cord themselves, packed in a plastic display."
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Plastic

Plastic:
"I had a pair of their Tri-Port Headphones in college and the build quality was just as terrible: I had to tape those back together since my fat head snapped the flimsy pieces of plastic that held the ear cups at length."
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"The plastics feel flimsy, the chord tends to coil and form kinks, the battery pack attracts every single bit of dust and lint that gets remotely close to it."
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"Sure the audio quality is great, but the cables constantly get caught on things, and within less than a year the plastic on the tips broke."
_
"I love these headphones, but unfortunately because the earpieces are made out of plastic, the little tab that holds the rubber tip onto the earpiece breaks easily."
_
"The only problem I have is that the plastic tabs designed to hold them in my ear do not fit the folds of my ear."
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"I checked the Bose website and found out that the clip is available for $3.95, which seems excessive for a tiny piece of plastic."
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"Build quality seems pretty good but everything is made of plastic and rubber silicone."
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"I love these headphones, but unfortunately because the earpieces are made out of plastic, the little tab that holds the rubber tip onto the earpiece breaks easily."
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"Watch out when removing them to swap sizes, as there is a very tiny piece of plastic that holds them on and it looks like it could break easily under the wrong pressure."
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"These come with 3 sizes and area soft plastic that is very comfortable."
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Plug

Plug:
"I do have a couple of minor criticisms though:- The box on the cord is only a few inches from the plug, which makes it sort of a clumsy fit at times."
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"The electronics package is on a short lead next to the plug and that seems like a point of failure."
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"It is somewhat annoying to have a dangling box from every device that you plug the QC20s into."
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"Comfort level of ear plugs not perfect but pretty good."
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"I really liked them, and they work very well, but the design could be improved, which is why I am only giving a 4 rating instead of 5.The noise cancelling control is right near the earphone plug, which creates a problem when trying to pocket the device."
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"Pros:+Quietness+Fit+Comfort+Battery life+Tangle free cord+Small stereo plug+Still useable with noise cancelling off or with a dead batteryCons:-Position of battery-Color of cord"
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"The charge lasts for quite a long time and is able to plug in via USB to the monitors on the headrests in the planes if requiring an additional charge."
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"Most comfortable pair of ear plugs I've ever used."
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"I was able to plug in my ipod and listen to music during the night flight and on the return flight watch a movie on my iPad."
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"Part of their success in that regard is bound to be due to the fact that they plug into your ears and are therefore able to block most any outside noise by sheer design, but even the other pair of noise cancelling earbud type headphones I have do not even come close to how well these do their magic."
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"it's like wearing good quality ear plugs - but I can listen to my music!"
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Portable

Portable:
"Love these because they are very portable, over the head earphones are not easy on the subway."
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"Some of them are outstanding like a 321 theater system that is fantastic in its simplicity, a couple of SoundDocks - one portable and one not which both sound amazing for their size and are also very simple to use, and a set of computer speakers that I have had for OVER 10 years that are still going strong."
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"Very portable and nicely built."
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"They are kind of like a portable little sanctuary device, in addition to being very good for audio."
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"Where these beat out the QC 15's is they are much more portable, the are even more comfortable than the 15s (the 15s are unbelivably comfortable, but even I have to take them off after an hour or so to give my ears some air), rechargable battery, and the ability to not need to have the noise canceling activated to play music (aka, can still operate after the battery runs out unlike the QC 15's).The only issue I have with them is that I wish they were louder."
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"They are very portable and come with a very nice and compact portable case."
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Power

Power:
"The power box is a little bit of a hassle but is a necessary evil for active noise canceling earbuds as the power has to come from somewhere."
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"Mostly because of that ridiculous power box design."
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"Pros: Noise cancellation Audio Quality (in noise cancellation mode) Comfortable fit, stay in ear even while jogging Easy to switch ear cups Nice neoprene case to store the headphonesCons: Terrible, Terrible, Terrible design on the power source for the noise cancellation feature, really terrible!"
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"The only downsides that I have found are that with the power, (noise canceling), turned off the sound is pretty flat."
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"When the volume is high enough you can't tell if the power is on or not, and it's easy to just take the headphones off and forget to completely power down using the power pack."
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"Just flip the switch to power them on and ambient noise is instantly brought down to a reasonable level."
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"Cables that go from earbuds to the rectangular power unit are good, but the one that goes from the unit to your audio jack looks like an afterthought, its far too short and much cheeper (thinner gauge)."
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"The expected quality build is there, classic Bose, nice texture on the power pack, earplugs fit comfortably."
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"The only downsides that I have found are that with the power, (noise canceling), turned off the sound is pretty flat."
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"PROLeave the power brick on, and you have amazing noise canceling, and sound."
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Price

Price:
"I think my advice here in buying these knowing that after warranty they come with quite a price tag for replacement due to defective failure."
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"I thought the Bose name was worth the price but in this case I was wrong."
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"This looks cheap and doesn't feel good in the hands4) the finish of the volume controller is poor."
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"I think listening to music with any earbuds at a comfortable volume can usually cancel out enough outside noise for me, but for just pure noise cancellation without music, these could be well worth the money if helps you relax and or focus and be more productive."
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"The only downside of the product, aside from the price, is the sound quality, which is just average."
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"These aren't cheap, but they are well worth the price."
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"Well worth the money and would highly recommend."
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"Otherwise, I suggest saving the extra money and get the Bose sport set and enjoying the great sound! "
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"Best money I've ever spent!"
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"Sound quality was good but definitely not superb for the price point."
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"All things considered, for the price these work great on an airplane, not so go for music clarity."
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Quality

Quality:
"They have a solid (not amazing) sound quality."
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"The quality of music is not as good as on some non noise canceling headsets but definitely ok and better than other noise cancelling headsets."
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"The sound quality is also very good, but it is not exceptional... My ultrasone Hifi 700's are significantly better for a much lower price; admittedly, it is a bit of an apples to oranges comparison."
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"My conclusion: I really wish there's another brand that can serve up the noise cancelling performance these Bose produce... the quality of these Bose products are inconsistent."
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"Sound quality is good but not the best I've ever heard on an earbud."
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"I'm so disappointed because I don't the reason why the qualities of my headphone is lower than the other one in reducing the noise! "
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"Sound quality is really good."
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"Best quality on phone calls of any device I've ever tried or heard."
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"While the sound quality is nice and the earbuds are comfortable and effective the real star here is the noise cancelling technology."
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"Music quality is also excellent."
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"Awesome pair of headphones from all perspectives - noise cancellation, the quality of the sound and wearing comfort."
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Remote

Remote:
"The most annoying problem is that the inline remote didn't work on my Droid Turbo at all."
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"The speaker remote is probably the worst part in terms of quality, making me anxious that it will just come apart every time I push one of the buttons."
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"The headphone is outstanding and my only criticism is that the battery and remote component takes some getting used to."
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"However, a bit uncomfortable while exercising due to the small remote type thing at the end."
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"The person behind me in line had the same problem with this model with the remote controller wearing out after 6 months of use."
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"Remote doesn't work so well with my HTC one."
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"I don't know much about these things but making that remote compatible with more devices than the Samsung Galaxy should not be that hard, please fix!"
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"All the materials seem relatively durable, and the cord is very high-quality, strong and soft; the inline remote and some of the outer plastic are perhaps the only slightly breakable-feeling portions."
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"The headphone is outstanding and my only criticism is that the battery and remote component takes some getting used to."
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"Being able to pause the music or disable the noise canceling for aware mode is nice to have on the little remote control on the cable."
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"The Aware Mode switch is easy to find by touch because it's on the thin edge of the remote, but the volume and start stop buttons are even easier, being on the flat side."
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Response

Response:
"As volume increases, so does the bass response on the buds too, but it still is slightly weak."
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"The base response is fantastic and the highs are nice and crisp."
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"The noise canceling is creepy good and the music response if amazing."
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"As for sound quality, I am not an audiophile but these provide acceptable bass response and nice forward mids with highs that do not screech at you, in that they are not tinny at the top end of the range."
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"I love listening to music, and do so constantly, but I rarely have the appreciation for nuances of bass response that can dominate discussions of audio fidelity."
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"I can wear them while my head is against a pillow ,take a call from my phone and get great audio response."
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Rubber

Rubber:
"After about year, the rubber coating the cord has degraded and split open, and the glue holding the bud together also split open."
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"However, the only problem with this product that make me returned it, is the SIZE of the rubber on the earphone."
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"These are not quite as comfortable, but are pretty good for the rubber ear buds.2."
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"Unfortunately, there's a few little things that have made these headphones really annoying to wear:First off, you'll notice that the rubber cord and noise-cancelling battery box get caught on everything."
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"When my neighbor got up out of her seat, the rubber on the cord caught her jeans and the cord broke and detached completely from the battery pack charger, leaving just a frayed cord with the inner wires popping out."
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"Pros:Great noise cancellingGreat battery life (I have yet to run it dead even after 6+ hours)Comfortable even after very long periods of timeCons:The rubber ear pieces fit well initially, but they seem to lose shape and deteriorate relatively quickly."
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"Build quality seems pretty good but everything is made of plastic and rubber silicone."
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"I'm used to hearing the words noise cancelling associated with earbuds, but that usually means the rubber pieces fit well in your ear canals and block outside sounds..."
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"I love these headphones, but unfortunately because the earpieces are made out of plastic, the little tab that holds the rubber tip onto the earpiece breaks easily."
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"The first time I put them in the clear rubber fell out."
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Setting

Setting:
"Here's the big problem, neither setting produces sound that I like."
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"With either setting the sound quality is amazing with great highs, lows and midrange levels."
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"+Click to hear setting: Well, not really useful for me, but if I were going to use these while walking around, I would appreciate it, since I don't like to be fully isolated in my hearing while I am moving about.+Bose Ear Pieces: I really like them."
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"It was great setting the volume level control to two instead of 8 or nine."
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"With these I have been able to use them at my phone's lowest volume setting without any background noise disturbing the song."
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"In a perfectly quiet setting, I would use different headphones or IEMs that sound better than these."
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Size

Size:
"These are not very good headphones for music, but for their size they do a good job of canceling airplane nose and for listening to movies."
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"ProsGreat noise cancellation (when the headset is charged)Great sound (when the noise cancellation is on)Very comfortable fit with the right size ear piecesConsNoise cancellation is mediocre when the active cancellation feature is offThe balance of sound is sub-par when noise cancellation isn't onThe active noise cancellation box at the end of the cable is HORRIBLE (see inconvenient)As I mentioned in my notes above, I am extremely tough on my headphones."
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"Okay one small complaint they are a bit delicate so treat them gently."
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"And the last problem I have is the size of the wire."
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"Two other sizes are included for those who find the defaults uncomfortable."
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"Size: If I've got one problem with this product, it's that everything about it is significantly larger than any set of earbuds I've used."
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"But I really love the size of these headphones."
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"They are easy to travel with and the case is quite small."
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"They are very good at noise cancelling, especially for their size."
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"If you want quiet comfort, small size get these!"
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Sound

Sound:
"The sound of the headphones wasn't great with the noise cancellation off and decent with it on."
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"They have a solid (not amazing) sound quality."
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"In an AirBus 320, the annoying play that has engines that sound like they are buzzing the whole time, you can hear it, but it's VERY reduced."
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"The sound quality is also very good, but it is not exceptional... My ultrasone Hifi 700's are significantly better for a much lower price; admittedly, it is a bit of an apples to oranges comparison."
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"The cord itself is durable, but its where the cord connects to the sound canceling device is the problem."
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"Sound quality is good but not the best I've ever heard on an earbud."
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"Even when on but not plugged in the sound reduction is great."
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"Honestly the best sound came when you picked the right sized attachments and held them in your ears with your hands."
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"Overall I would say the actual sound quality is slightly less than my old S4s, though with the noise cancellation on they sound pretty good."
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"Sound quality is really good."
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"Great comfort and sound, but noise canceling wasn't worth the price."
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Speaker

Speaker:
"The speaker remote is probably the worst part in terms of quality, making me anxious that it will just come apart every time I push one of the buttons."
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"Like most average gyms, they have some poor quality, often annoying, music piped in through overhead speakers (ironically, my gym uses Bose speakers)."
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"Then, the right ear's speaker failed, and it would only produce high-pitched sounds, even with the noise-cancellation system completely turned off."
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"I own several Bose products - Home Audio, computer speakers, Bluetooth headset, Audi Car Audio system, Portable speaker, etc.... and for the most part they are all quite nice."
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"The 20s will give me peace and quiet on the go while my trusty Bose QC 15 headphones will continue to be my go-to speakers for active music enjoyment."
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"I have been buying products from them since 1991 when I bought AM5 speakers (there were great)."
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"I own many Bose produtcs...900 series speakers (I'm old) , cube speakers with woofers for my big screen, 2 Wave radios, Blue tooth remote speaker...love them all, so I had high expectations."
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"The in store demo is amazing; You stand in front of a TV speakers and put the headphones in."
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Travel

Travel:
"I bought these for boyfriend because he is a terrible traveller and I wanted to try and make his travels a bit more enjoyable."
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"They also never did a terribly good job of blocking out that greatest of all travel annoyances, the wailing infant in 22C."
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"While the Bose QuietComfort 15 headphones are great on travel as well, especially when on a train or airplane, the only drawback has been their bulk."
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"I always recommend these to anybody who regularly travels."
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"They are easy to travel with and the case is quite small."
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"I love that they are in-ear making them way easier to travel with."
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"Great product but spendyI travel ton for work and need to get rest while on plane."
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"This smaller version is easier to travel with because they do not take much room at all."
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USB

USB:
"Even when I forgot to turn it off and got on my next flight with a dead battery, I just plugged it into the USB on my laptop charged up in about an hour while I was using it."
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"Handy if you are unable to charge via USB."
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"Beware, though, that the supplied USB cable (for charging) is only about 10cm long."
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"The battery life is good (12-hour flights, no problem) and being able to recharge from USB is good for folks who don't want to deal with different adapters."
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"If you have both the QC20 headphones and a computer plugged in at the same time (whether you are charging the QC20 via USB from the computer or via a separate USB charger), the QC20 headphones will have an annoying 60Hz hum or other background hiss."
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"The solution to this problem is to not plug in the USB connector QC20 headphones, which is a big downside for me because I had planned on using them at work during the day; besides battery wear, I have to give up either my music or noise cancelling if I forget to charge them up."
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"The charge lasts for quite a long time and is able to plug in via USB to the monitors on the headrests in the planes if requiring an additional charge."
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"Battery life not as long if you need it for long flights, but USB makes it easy to charge."
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"I generally used my QC20's at my desk, where it was easy to keep the amplifier connected to a free USB port, so I can't speak to its battery life, but by all accounts it is excellent."
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"They wrap up along with the micro USB charger into a nice little neoprene zip case about the size of a small cell phone."
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"I love the fact that I only need a USB connection to re-charge and not batteries or some custom power adapter."
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Video

Video:
"The amount of noise cancellation was a little disappointing, they do a great job when you are listening to a movie or song but the amount of white noise that is created during silence is why I can't recommend spending the $300 for these."
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"I used these headphones to watch a movie, but afterwards, I unplugged them from the audio jack and just enjoyed the silence."
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"I bought the regular bose headphones which sound great, but when I tried them on a flight, I couldn't hear the movie coming from my ipad and I had to share earphones with my husband who has the noise-canceling set."
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"Perfect for classical music, audiobooks, and long movies on long flights."
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"The noise canceling feature is truly amazing, took them to a trans-pacific flight not long ago, I enjoyed listening to music and watching movies with them greatly, I also love the fact the noise canceling could be turned on or off with a single button press."
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"Great for watching movies and heaven that they block out snoring, frenetic gum cracking, and all those other annoying repetitive noises one naturally gets in a closed space full of people."
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Voice

Voice:
"It's eerily quiet on a noisy jet, effectively muffling the voices, annoying cabin announcements,and crying babies all around you to a barely audible murmur."
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"I can still hear their voice (distorted voice, kinda weird)."
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"I've been using them around the house and they cancel a fan and a c to the point where you can't here it at all.. voices you can here pretty good still.. like the a c is on and cant here it all all but the tv will be on and I can here it pretty good.."
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"One time there was a very talkative lady w a high pitch voice sitting across the aisle and 2 rows behind; w o the engine noise, her voice came across crystal clear unfortunately."
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"- Feels very awkward while answering any phone calls when noise cancelling is active as the own voice feedback is missing."
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"It's eerily quiet on a noisy jet, effectively muffling the voices, annoying cabin announcements,and crying babies all around you to a barely audible murmur."
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"I know the microphones are processing out external sounds but my voice is muffled during the call as well."
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"Back to talking on the phone...even when voices are low they are still clear."
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"One time there was a very talkative lady w a high pitch voice sitting across the aisle and 2 rows behind; w o the engine noise, her voice came across crystal clear unfortunately."
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"They do not cancel some of the voice noise around you, but they do a darn good job in the low frequency ranges."
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Warranty

Warranty:
"These are not a lifetime product and unfortunately customer service, while polite, can only do so much after warranty."
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"I actually love the headphones but my broke just after 15 month, so just out of warranty."
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"The buttons broke a little after it was out of warranty."
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"This problem has developed after the first year of use, so the warranty expired."
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"I contacted Bose about possible repair and they said that this damage is not normally covered under warranty but they would make a one time exception."
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"The sides of both the left and right earbuds in my original set began to separate about 3 months after the one year warranty expired, which caused a terrible screeching sound making the set unusable."
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"Calling into their technical support, I received a friendly reminder that it was out of warranty - OK understood, how much to repair?"
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"I actually love the headphones but my broke just after 15 month, so just out of warranty."
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"I contacted customer support and my headphones were under warranty which was great."
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"Pros:- Good noise cancellation- Audio quality is very good- Battery lasts a while (though it would be nice for a little bit more time, since some flights can be 15+hrs)- Earbuds fit well, the attachments are quite nice- The carrying case is very useful- Their customer service warranty people are amazing and the process is seamlessCons:- Construction could possibly use some improvement (my first pair died due to an internal component becoming dislodged, after 20~ uses); NOTE that Bose fixed this very smoothly, read pros- Noise cancellation could use some improvement for future models (these still are the best in their category)- More battery life would be niceFor con 1, Bose was amazing at fixing the issue."
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"This means, if you purchase the QC20s from Amazon, and they have been sitting on Amazon's shelves for 8 months, the manufacturer's warranty is only good for another 4 months after you receive them."
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iPhone

iPhone:
"I've always found the Apple earbuds that come with the iPhone to be uncomfortable after a while and I hate over the ear headphones."
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"Disappointing had numerous complaints about call quality when using the iPhone hands green feature."
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"Sound is great and worked will with my iPhone as they were designed for."
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"I've also tried listening to some lectures on my iPhone with them, so nice."
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"For side sleeping, the klipsch are better or even better yet the apple ibuds that come with the iPhone are best for that purpose for some reason."
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"100% compatible with iPhone earbud controls, you can easily jump next, previous, fast forward backward etc., which is huge plus to me."
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"I've also used the headphones on multiple devices with great success: iPhone, Kindle, PC, Surface Pro 3."
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