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Sennheiser PXC 450 Active Noise-Canceling Headphones by Review Summary ,  Sep 1, 2015

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Sennheiser PXC 450 Active Noise-Canceling Headphones
Report Date: 01/02/2016
Based on 487 customer reviews
Overall satisfaction: 3.9
Returned or considering to return: 11.1%

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Frequently Mentioned by Customers:


Individual Feature Rating
Button4.7   exceptional
Comfortable4.5   average
Audio4.3   above average
Listening4.3   average
Noise-cancellation4.3   average
Quality4.3   average
Range4.2   average
Sound4.1   average
Travel4.1   below average
Volume4.1   above average
Fit4.0   below average
Music4.0   average
Price4.0   below average
Heavy3.9   above average
Control3.8   average
Noise3.8   average
Size3.7   average
Battery3.6   below average
Design3.5   below average
Frequency3.3   below average
Level2.9   mediocre
Performance2.9   mediocre


Quotes from the Reviews - What People Say about:

Amazon

Amazon:
"Fantastic sound quality across a wide range of music, however I returned them to Amazon because I found them heavy and uncomfortable on long flights."
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"It would be a huge hassle to return to it Amazon US and the waiting period for my credit refund could be up to 30 days."
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"Not that this is solely Amazon's problem, as I've seen similar rub marks on many of the units sold in stores."
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"i recently bought these on Amazon and i gotta tell you these are worst the Bose and even cheap Sony MDR-NC40 which i bought on sale for $50."
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"I got mine at a great price reduction from Amazon."
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"Sound quality: Sorry, I had already packed them up and sent them back to amazon before even trying them with audio, that is how bad the NC and comfort were in these headphones."
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"I hope that I just received a knock-off pair (they were ordered from Amazon, so you never know...), but these were such a disappointment!"
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"And thanks to Amazon for such a wonderful price."
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"I love Amazon, though."
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Audio

Audio:
"The audio response is terrible in the mid-range (no matter what the EQ settings on my iPod), as if I had just taped open soup cans over my ears."
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"The Sennheiser brand is considered the benchmark of audio equipment so I am very disappointed that the PXC 450 NoiseGard failed to reduce noise in a significant way."
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"However to us folks a little more acquainted with quality audio headphones you will be disappointed."
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"Over the past 8 years or so, I've purchased three Bose NC units, while audio was very good, they all broke within 2 years (used tape to hold them together on some flights) and they were all too tight around my head (I'm 6'5)."
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"Bose QuietComfort 15Sound cancelling is pretty much industry leading, however the build quality was junk and the audio had quite a few dead spots and had too much midbass and highs."
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"That is a big one, because if you have the wrong audio equipment, your blasting the action in your ears to hear dialogue."
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"The EQ processing is nearly flat which is great to get an audio pass-through effect in the headphones."
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"The audio quality is good, but that's the only redeeming quality."
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"Are these going to be as good in audio reproduction as a $250 studio headphone?"
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"The audio reproduction is fantastic, lows aren't too bassy, highs aren't shrill, and mids come out clear instead of being muddied in the mix."
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"Sound quality: Sorry, I had already packed them up and sent them back to amazon before even trying them with audio, that is how bad the NC and comfort were in these headphones."
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Battery

Battery:
"Other noise canceling headphones I have you only need to flip one switch, but also work when the battery is dead or not installed."
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"The sound quality is very high (at least as far as my untrained ears can tell).The noise-cancelling is not as good as that of certain competitors, but the headset can work without batteries, which is a very nice plus."
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"The passthrough is nice (works if the batteries are dead) but the switch is in a weird place.6."
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"In case of dead battery, bypass feature is a excellent feature (then no battery needed)."
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"EDIT: previously didn't think there was a bypass switch in case of dead battery."
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"This is really annoying, because I don't want to have to lug batteries around with me just in case."
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"I was very good at that, so a battery can last at least 5 days easily."
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"Well, two 10-hour transatlantic flights on one set of batteries and they're still going strong, so no complaints there."
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"The noise cancellation is great and is very comfortable, but the battery runs out so fast."
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"I use these primarily for flying, and they do a decent job of blocking the noise - I also love the fact that I can use them as regular headphones if the battery dies out."
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"Also, I actually prefer being able to change the batteries, not like some that have rechargeable batteries built in were when your batteries run out you can no longer use them."
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Button

Button:
"Oh.. and the on off button is sticky semi broken."
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"They will also work when the battery goes dead sans the N. R. (something the QC3 will not do), and they have a button on the end which allows you to hear outside conversation from your wife, the flight attendant, etc...very cool."
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"They are heavier, they are better made, they have a great feature that allows you to press a button to hear people speaking to you."
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"Background noise reduction is not as high as I like it but it has a nice button to allow you to hear everything around you."
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"The Sennheisers sound great, and the bypass button is very helpful when the cabin attendants come around (as rare as that might be! )"
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"The other part of the NC bypass that's great is that when it is turned on you can press a button on the side which shuts off what's playing in your headphones, and uses the NC microphone as an amplifier."
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"The Talk-through button is simply great, just push it, music stops, and you can freely talk with anybody, push it once and return to enjoy your music back again."
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Cable

Cable:
"I don't feel at all concerned that I'll damage the cord, break off an ear piece, or anything like that."
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"The cord is long but not absurdly long, a compromise between the very long headphone cords that come with headphones mainly designed for listening to your home stereo and the shorter headphone cords for your iPod or whatever."
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"The thing that disappoints me is, although the cable is detachable the connector is molded and does not fit a standard car radio AUX jack like my ATs."
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"A C unit at home - passed, having problem with very short cable - had to use an extension, but overall noise canceling feature worked nicely, my wife had to come over and tap me on the shoulder to get my attention.2."
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"The detachable cord is a nice feature for when you want to use the headphones simply to create a less noisy environment."
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"This was a must have feature since the cable can get destroyed easily."
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"I also love its easy of storage and detachment of the cable."
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"Good cable."
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"good cable."
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Comfortable

Comfortable:
"They developed a strange static snap, they weren't comfortable after an hour or so and they didn't sounds as good, nor was the noise cancelling as good as my Bose on-ear headphones (which I also find uncomfortable after a couple of hours-wish I'd bought the over ear model)."
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"Caveats on these so far are that the AKG's are NOT comfortable long term...my ears are tired after about 1.5 hours, and I have small ears."
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"I like the sound better, battery life is longer, comfort is not as good but works for me."
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"Where the Sennheisers have a slight comfort disadvantage is actually in their size."
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"I hate the comfort of this headphone!"
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"The closest competitor is the A-T ATHNAC7, which has less comfortable cups and excessive sound leakage, though at a much cheaper price."
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"Noise canceling is adequate but nowhere as good as my husband's Bose Quiet Comfort."
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"These are very comfortable as well."
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"Compared to a Bose Quiet Comfort 15 these do not block sound as well, close but not quite."
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"very comfortable, work great on my PXC 450's"
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"The noise cancellation is great and is very comfortable, but the battery runs out so fast."
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Design

Design:
"This seems to be a design oversight in my opinion."
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"This unit is beautifully design and has great features, however I was disappointed with the sound quality; my other unit sounds better; I agree with consumer Report."
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"Beats Studio: Eye-catching design and color and good sound but uncomfortable on long flight."
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"but here is my personal assessmentBose QC3: Good sound quality and small form-factor since it's on-the-ear design but not comfortable on long flight."
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"Likely my mistake - German design but communist chinese manufacturing - should have known better."
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"Most cell phones and tablets are designed to work best with headphones that have a 16 - 32 ohm impedance."
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"Their simple, durable design and response are excellent for sharing music and movies at home without bugging the neighbors."
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"his is a very well designed, robust piece of equipment that is made to last."
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"This unit is beautifully design and has great features, however I was disappointed with the sound quality; my other unit sounds better; I agree with consumer Report."
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"Beats Studio: Eye-catching design and color and good sound but uncomfortable on long flight."
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Fit

Fit:
"I have a smaller head; I ended up returning these headphones because they did not fit well."
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"Not a great fit on me."
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"You would think that with this would come a good fit and plenty of ear room.... Wrong!"
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"The sound quality is good when the ear piece is snug against my head but getting it to fit snug is a problem on my head anyway."
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"And fit quite precariously loose, not a good seal around the ears."
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"I have used Bose QC15 and sound quality on PXC450 headphones is way better than Bose and the noise cancelling is pretty much same in both (or I couldn't find any difference).At first I was scared with reviews on these headphones being big and not fitting an average ear, but then I bought it anyway to try it out."
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"Don't get me wrong, the Bose sound was great and totally fits my work environment, it has better passive noise filter and the louder lower frequencies make it possible to drown the environment at a minimal volume, perfect for not getting ear pains at the end of the day."
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"Fit and build quality is excellent for me."
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"The fit is decent, they are snug but not too tight."
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"You would think that with this would come a good fit and plenty of ear room.... Wrong!"
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"They're comfortable and the large earpiece fits completely around my ear without pressing on any part so it's comfortable to wear for long periods."
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Frequency

Frequency:
"I could've given it 5 stars but very rarely it'll produce a brief flutter and I think it's something to do with a directional frequency confusing the noise cancellation system."
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"The lower frequencies are just about completely missing."
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"The cups apparently don't seal tighly enough to the face and the noise canceling mic picks up noise from inside the set... creating an annoying feedback loop that generates a low frequency rumble."
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"The bass is good and not loud and it has a good frequency range response."
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"The upper frequencies were disappointing, as was the sound stage."
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"the one major complaint i have about this device is that the bass response is somewhat dissapointing when compared to that of my cx300 in terms of low frequency extension--- not response or accuray though."
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"Absolutely the best sound, not heavy at all, not like some of the newer brands, great sound canceling, great frequency range, not too heavy of bass, over the ear insulation to keep ambient noise out and you can still listed to music should the the battery run out, which you cannot do with Bose and Beats."
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"The frequency range is great and I'm hearing more parts of the music I listen to then ever before."
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"In other words, they produce a very clear, even sound across the frequency band without introducing any apparent emphasis or harshness, and do so for all genres of music."
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"None of the high,mid,low frequencies worked good."
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"The noise cancellation is 95% as good as the Bose on the lower end frequencies, but these also cancel a bit of the higher frequencies, such as a bit of voice as well."
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Heavy

Heavy:
"Fantastic sound quality across a wide range of music, however I returned them to Amazon because I found them heavy and uncomfortable on long flights."
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"Quality is superb, I honestly cannot tell the different in NC quality vs. Bose and it's not too heavy as well."
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"But when I tried the headset on I had to remove it after about 15 minutes it was too heavy an uncomfortable to use."
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"Absolutely the best sound, not heavy at all, not like some of the newer brands, great sound canceling, great frequency range, not too heavy of bass, over the ear insulation to keep ambient noise out and you can still listed to music should the the battery run out, which you cannot do with Bose and Beats."
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"My girlfriend has the Bose qc25's so I was able to compare them though, here's a quick summary:Comfort: These headphones are very heavy and bulky."
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"It is a true and accurate sound as opposed to the heavy bass accents offered by some of the competitors."
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"The PXC450 are a beauty in all senses, besides the impressive music quality they look stylish and robust, made with high quality materials for heavy use."
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Level

Level:
"The actual level of performance was completely unacceptable."
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"So, it levels out with Bose in noise cancellation, then beats it dead in terms of pure sound quality."
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"On airplanes, I don't need to jack up the volume to ear damaging levels when the noise cancellation is engaged."
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"You won't get total quiet with either of them, but it will be quiet enough for you to hear people talking to you at normal levels (for me that's a problem) even with the headset on."
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"One know some science would learn that such level of 'quiet' is not good for health."
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"As and avid music listener, by far the IPX 450 deliver the superior sound on many levels."
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"They seem to have a slightly higher impedance than most headphones you'd use with an iPod or iPhone, but I was able to reach very good sound levels without an external amp on the bypass mode."
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"A greater level of efficiency (meaning more volume at a given amplification power) could help."
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"I can listen at a very comfortable level and really enjoy the music, and for longer periods of time."
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"The Sennheisers needed alot more volume from my mp3 player than the Audio Technicas to drive sound to a reasonable level."
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Listening

Listening:
"So I am not able to use this for skype calls and when listening to music, that means I have to get to my iphone to change songs."
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"I'm not an audiophile, but I love listening to music from my iPhone and iPad through headphones."
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"Essentially, what this means is that you have three choices:1) Put it on normal noise reduction mode where your listening experience is compromised.2) Listen to the clicking sound on by-pass mode, where the quality is supposed to be better.3) Continuously take the batteries in and out every single time you want to change modes."
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"The Bose sound decent but the clarity & fun was missing and I just didn't enjoy listening to them."
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"I ended up purchasing a set of the Sennheiser HD-280 PRO headphones at guitar center for $85 + tax---they do not have active noise cancelling, but the passive noise cancelling is good, and they completely block out all outside noise when you are listening to music (worked well on an airplane)."
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"If you want headphones mostly for pleasure listening at home, I recommend non-noise canceling ."
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"Excellent headphones for dedicated music listening."
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"I've used these both for travel on a plane as well as with my iPhone for listening to music and playing games."
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"The sound is fantastic and all reviews say the burn in over hours of listening will make them better."
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Loud

Loud:
"Annoying, loud squealing sound occasionally caused by feedback."
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"The bass is good and not loud and it has a good frequency range response."
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"Loud music will damage your eardrums etc."
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"The only negative is that they do not go loud enough."
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"I can't hear anything my loud co-workers are saying next to me, so I am extremely happy for that."
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"I bought these a couple of years ago to be able to work next to a very loud co-worker, they worked wonders!"
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"Noise cancellation of these headphones is the best I have experienced, especially for the high-frequency hiss of a loud air conditioner that I am forced to work near."
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"I sit pretty close to the server room and have loud noise from time to time from other people walking around and talking."
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"With these Sennheiser headphones, they work great, are comfortable, never had a problem with them other than they don't get as loud as I like."
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Music

Music:
"However, with fairly heavy use, I have had the following issues: (a) the covering on the ear pads has come loose, and sheds all over my clothing when worn; something like black dandruff; (b) sometimes the noise canceling function and music fail to work together."
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"My co-worker is approximately 10 feet away from me, blaring crappy music through some old computer speakers."
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"So I am not able to use this for skype calls and when listening to music, that means I have to get to my iphone to change songs."
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"The tractor noise is loud without ear covers and with the Sennheiser NC off, it muffle the noise somewhat but still can't enjoy the music and when NC turn on, I can hear the music and the noise 50-50 better."
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"I agree, the noise cancelling feature on these headphones is not as good as Bose, but the music reproduction and durability of manufacture more than make up for that."
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"I own a Bose set for work but I was getting tired of the bouncing low frequencies and wanted a more natural sound and this pair made the music so much more comfortable."
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"I was able to listen to music in a room where other music was playing over a speaker."
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"Nope, but then again, I'm not recording with these, I want something I can enjoy the quality of my music and drown out my surroundings without going deaf."
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"The build quality and comfort was nice, but the most important parts to me are the actual noise canceling and the sound quality so I can enjoy my music to the highest extent."
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Noise

Noise:
"Easy to use, great sound, hard to compare noise reduction but it appears to meet spec."
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"Noise Cancellation not good.2."
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"The audio is very very good though perhaps not quite as good as Sennheiser's regular (i. e not noise cancelling) headphones."
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"Noise canceling is mediocre."
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"These headphone's noise cancelling failed miserably the first time I tried them on an airplane."
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"A common complaint with noise cancelling headphones is that they apply a lot of pressure on the ears."
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"Easy to use, great sound, hard to compare noise reduction but it appears to meet spec."
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"Great headphones, the noise canceling feature makes flights a breeze now."
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"Noise canceling is adequate but nowhere as good as my husband's Bose Quiet Comfort."
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"Sound quality without Noise Cancelling is very good."
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"These are my first noise cancelling headphones and I have to say that they are great!"
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Noise-cancellation

Noise-cancellation:
"The sound quality is very high (at least as far as my untrained ears can tell).The noise-cancelling is not as good as that of certain competitors, but the headset can work without batteries, which is a very nice plus."
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"I am sorely disappointed in the noise-cancelling feature."
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"The noise cancellation is good but I've never been truly satisfied with any noise-cancelling I've witnessed."
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"I am revising the star rating from 3 to 5.Previous problems:Which is why, when my PXC450s inevitably fail (bleed-through of music in talk-through mode, or failure of noise-cancellation, which has happened five times in the last two years), I am very disappointed (my sixth replacement just failed on a flight yesterday)."
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"So, I bought a pair of Sony noise-reduction headphones...they worked pretty well, but they are flimsy, and they sit on the ear, not around it."
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"The noise-cancellation feature is great, because on their competitor's offerings, I immediately began to suffer a headache when I enabled the competitor's noise-cancellation."
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"These are hands-down the best noise-cancelling headphones I've used."
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"Bose is unparalleled in the active noise-canceling domain."
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"But if you are intent on buying active noise-canceling headphones, the current price of these headphones at $227 is a more reasonable than before."
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"So as far as noise-canceling headphones go they are probably among the best you will get."
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Performance

Performance:
"However, I'm rather disappointed in the sound performance."
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"I am disappointed in how the phones performed."
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"The actual level of performance was completely unacceptable."
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"When doing my research on what to buy, I listened to the Bose Quiet Comforts 2 & 3 in a Bose shop and was disappointed with their performance."
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"Given the price of the Sennheisers, their performance was a very big disappointment."
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"Performance:The noise cancellation feature was ineffective at reducing background noise."
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"Excellent performance."
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"The Bose quality is awesome and the comfort and performance much better!"
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"Music performance is excellent even in passive mode (bypass) than with the noise cancelling feature activated (normal)."
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"- The noise cancellation seemed comparable to my old headphones, but I admit I did not get to test them on a plane given my short time with these (other reviewers seem to be find the performance adequate).The Not-so-good- Aside from the TalkThrough button, the volume up down buttons and the power button are all difficult to find and push while seated on your head."
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"The NG works excellent; you just have to give it a moment to give you its best performance."
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Plastic

Plastic:
"These headphones have a raised piece of plastic baffel that sticks out like a hump inside the headphones, this plastic then pokes into my ears and is quite annoying and VERY UNCOMFORTABLE!"
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"Poor ear cushion (you can feel the hard plastic behind flimsy ear cushion) and creates uncomfortable pressure inside the ear (probably due to their ANC design)."
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"The overhead band is much stronger than Nokia bh-905 ( I broke the plastic ring twice).The noise cancellation is in par with Nokia ones in the environment I've tested both with."
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"Run your hands along the outside: aluminum, high-quality plastic, stainless steel."
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"The cord is thick and rugged and the headphones themselves seem to be made of very durable plastic."
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"They're mostly plastic, and although they are comfortable, they feel a bit cheap."
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"They feel rugged and sturdy, though they are mostly plastic so they do scratch and twist easily."
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"The left earpiece rides up against the clear plastic window in the box."
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Power

Power:
"I'm not sure whether this is because they are inefficient (take too much power for the output) or because the input impedance is just too high."
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"The volume and power controls on the Sennheisers are remarkably small and hard to locate by feel."
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"So, don't expect these to shake you with deep decent sound if your inputs are weak in the power department."
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"- Easy to leave power on in perpetuity there by running the battery down."
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"A greater level of efficiency (meaning more volume at a given amplification power) could help."
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"The volume and power controls on the Sennheisers are remarkably small and hard to locate by feel."
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"They are big, but fit comfortably and the fact you can use them without battery power via the bypass switch is the best feature."
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"For me the fact that they can be used as normal headphones without requiring battery power makes then a clear winner over their nearest competitor, the Bose Quiet Conforts 3s."
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Price

Price:
"But if you are an audiophile or even someone who uses good headphones regularly you will probably be disappointed with the sound considering the price tag."
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"To summarize, I cannot recommend any spend this kind of money for these headphones."
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"For this kind of price, I'm VERY DISAPPOINTED! "
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"I will say that they go through batteries even when turned off so that may be a negative for some but for me its a small price to pay for the awesome sound."
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"Bottom Line (7.2 10) - I will tell you immediately that these headphones do not sound the best at this price point."
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"Given the price of the Sennheisers, their performance was a very big disappointment."
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"I got mine at a great price reduction from Amazon."
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"Excelent product, but it's not worth the price."
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"But if you are intent on buying active noise-canceling headphones, the current price of these headphones at $227 is a more reasonable than before."
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"I've had Sennheiser headphones before and they have had a very good sound compared to other headphones, so I trusted that the noise-canceling technology would be far superior than the Sony's for the price."
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"Build quality is amazing, it does not feel cheap at all3."
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Quality

Quality:
"The build quality is great too as I've dropped it several times w o any damage."
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"I made the change because the Bose QC-15 build quality was very poor and the headphones failed in about 15 months."
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"First, I purchased a pair of SOUL by Ludacris SL300WB NC headphones because they were cheaper (about $130) and seemed to be good enough but turned out to have horrible sound quality despite bearing the name of a musician, and second I mistakenly left them on a plane after a very long flight."
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"However to us folks a little more acquainted with quality audio headphones you will be disappointed."
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"I know I'm in the minority on the sound quality issue, but trust me, if you are an audiophile you are going to hate these."
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"The sound quality is decent but not amazing like so many reviewers here claim."
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"The sound quality on these is pretty decent."
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"Sound quality without Noise Cancelling is very good."
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"Excellent quality, especially on pass-thru."
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"Of course, these are well built and have good sound quality, but they are extra expensive because of their supposed active noise cancelling, but it just doesn't work at all."
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"Extremely happy with the sound quality and noise canceling."
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Range

Range:
"The bass is good and not loud and it has a good frequency range response."
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"This was my first attempt at purchasing a mid-fi range pair of headphones."
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"Absolutely the best sound, not heavy at all, not like some of the newer brands, great sound canceling, great frequency range, not too heavy of bass, over the ear insulation to keep ambient noise out and you can still listed to music should the the battery run out, which you cannot do with Bose and Beats."
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"In use, the sound produced is best through the mid range."
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"Fantastic sound quality across a wide range of music, however I returned them to Amazon because I found them heavy and uncomfortable on long flights."
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"Comfortable noise reduction and pretty good dynamic range in the music."
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"The frequency range is great and I'm hearing more parts of the music I listen to then ever before."
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Response

Response:
"The audio response is terrible in the mid-range (no matter what the EQ settings on my iPod), as if I had just taped open soup cans over my ears."
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"The bass is good and not loud and it has a good frequency range response."
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"the one major complaint i have about this device is that the bass response is somewhat dissapointing when compared to that of my cx300 in terms of low frequency extension--- not response or accuray though."
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"Their simple, durable design and response are excellent for sharing music and movies at home without bugging the neighbors."
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"Sound quality is excellent, though I noticed that the dynamic response seems better on bypass that in ANR mode."
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"Sound quality is different and like the Bose superior, although the bass response is not as prominent."
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"I ride trains and airplanes... (united lufthansa, and metra caltrain)I was hoping these headphones would make it possible to compose music on my laptop while riding a train or plane without having to crank up the volume to hurt my ears, while keeping good sound quality, flat response, for accurate listening."
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"But if you want headphones with a very flat response curve and excellent transient response, you'll be very pleased with the PXC 450s."
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Sound

Sound:
"Easy to use, great sound, hard to compare noise reduction but it appears to meet spec."
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"Sound reproduction is very disappointing."
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"Annoying, loud squealing sound occasionally caused by feedback."
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"Did not sound as good as I had hoped, I returned them."
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"However, I'm rather disappointed in the sound performance."
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"But if you are an audiophile or even someone who uses good headphones regularly you will probably be disappointed with the sound considering the price tag."
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"Easy to use, great sound, hard to compare noise reduction but it appears to meet spec."
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"The sound canceling is decent as well."
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"The sound quality on these is pretty decent."
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"Sound quality without Noise Cancelling is very good."
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"Does need some break-in time to get best sound."
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Travel

Travel:
"The Good:I travel a ton for work and always had a huge problem with background noise on the plane while trying to watch movies on my tablet."
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"I will never ever be able to travel without them again."
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"To be sure, both sets do a nice job of eliminating low frequency noise, enough to make air travel more pleasant if you dislike the rumble of plane engines."
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"I cannot imagine air travel without the insular comfort of these superb headphones."
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"I used it for a while before selling it (1.5 years) because I never really used that noise cancellation and it feels like an extra 'pressure' on my ears, but it does work very well, it just wasn't for me especially because I don't travel on planes too much."
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"Having used these for many trips over the past 5 years or so, I must say that when these work, they work well for airplane travel."
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"The Good:I travel a ton for work and always had a huge problem with background noise on the plane while trying to watch movies on my tablet."
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"Best to leave your $3-400 'phones out of your travel plans."
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"I've used these both for travel on a plane as well as with my iPhone for listening to music and playing games."
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Volume

Volume:
"no bass, no bass or treble or volume control, wouldn't buy or recommend to anyone; made well, but not noise cancelling at all, uncomfortable pressure over ears"
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"At high volume there was a very annoying popping sound every time the bass and bass drum sounded."
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"On airplanes, I don't need to jack up the volume to ear damaging levels when the noise cancellation is engaged."
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"I would have not mind this as I am use to all my passive headphones (no power), however, now that I have experience having the convenience of a pass-though talk with volume control, I would say I missed the Sennheiser."
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"The real problem was it's max volume."
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"My disappointment consisted of the poor sound quality and volume strength of the Sennheiser PXC 450 compared to the Bose Q 15 or other brands for that matter."
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"Don't get me wrong, the Bose sound was great and totally fits my work environment, it has better passive noise filter and the louder lower frequencies make it possible to drown the environment at a minimal volume, perfect for not getting ear pains at the end of the day."
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"But with IPX 450 the one is able to hear DETAIL, and hi's and low's at any volumes."
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"The integrated volume control is useful as well."
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"These head phones are more for people who like to have clear definition and low volume."
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"- The noise cancellation seemed comparable to my old headphones, but I admit I did not get to test them on a plane given my short time with these (other reviewers seem to be find the performance adequate).The Not-so-good- Aside from the TalkThrough button, the volume up down buttons and the power button are all difficult to find and push while seated on your head."
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