Great Noise-Cancelling But SMALL in Size
925607
The noise-cancelling ability of these headphones is very good, definitely on par with other (more expensive) brands. However, the deal breaker for me was the abnormally small size of these headphones. The cups were very tight over my ears, which I could have gotten over, but the headband itself was way too small. I have an average size head and could barely cover my entire ears because of the short headband.
4546355
I was very excited to get these as I am quite sensitive to noise.

Pro:
  I have small ears and these fit quite well.
  These have made it so that the noise of crowds is no longer painful.
Con:
  I also had the experience of the small earbud like piece coming off in my ear after only a week of use. Though I was able to get it our easily and was able to fix the piece with superglue that has held together quite well since.
558542
These headphones work and sound great. Connecting them to my Nexus 6 was relatively easy, and the controls on the left earpiece are very easy to get used to. My only problem with these is they don't exactly fit my smaller ears, but that it more of an issue with me than the product. If you have small ears, these can still work, as I have made them work for me, but you might experience slight discomfort from time to time.
549000
I bought these for my 10 hour Airplane trip.  Noise cancellation was amazing (first pair)!  They fit snugly with no discomfort.  Con's are some background static due to the cancellation technology along with the "noise technology bar" in the cord, however the reduction in ambient air travel noise was worth it.  Headphone adapters came with standard Airline (2-prong) adapter and standard stereo adapter.  Required 2 AAA bat and the noise technology bar had a clip that swiveled.  Recommended by Consumers Reports for noise cancelling and its compact design were my main purchase reasons.  Nice case.  For sharing, I recommend the Monster splitter with individual volume controls.
4406637
These in-ear headphones are probably the best in their class in both sound quality and noise cancelation. I have the Bose MIE2 as well and while these aren't as comfortable, they out perform the Bose in sound quality. This set is quite rugged as well. I use them while doing any activity that might involve sweat or water and they have yet to slow me down. The only reason I didn't give them 5 stars was because the fit isn't great, I seem to be in between sizes which isn't the manufacturers fault but does leave a little bit to be desired on my end.
2813607
I don't know if I just have big ears, or if these are made for smaller people, but the headphones just don't really fit.  The sound I get is great; the bass is noticeably powerful. Also, these are great for hearing other people on voice chats/radio shows on a computer.
3849253
The noise cancelling works very well, especially considering these sit lightly in the ear. That also means you can use them comfortably for as long as you like. The controls work as promised. The lead after the battery box is definitely too short. Worse, the several extensions I have purchased, including the official 20' Bose one do not pass on the volume and track commands which negates a major function bonus to the headphones. The aware button feature allows you to quickly defeat the noise suppression to be able to hear things like plane announcements works well which allows you to not have to remove the earbuds  from your ears or turn them off every time there is an announcement. The zippered case works, but it's barely large enough and the zipper is a bit of a hassle. I will probably switch to another case that has a magnetic flip closure that fits these headphones better if I can find one. The product comes with three different sizes of the "stay+ ear tips" to customize it to your ear size. The built in rechargeable battery lasts a long time. I have several other noise cancelling or suppressing headphones and earbuds and these are the best I have experienced for noise suppression without ear discomfort and excessive bulk. The phones will work for music or cellphone conversation with or without being turned on, but are way better on than off.
212161
Very good sound and noise reduction for the price. They do an excellent job of quieting the background noise of, say, a lawnmower or an airplane. They are really great as a travel companion due to their small size and great noise cancellation. Not quite as good as that available from Bose, from my brief in-store listening, but an absolute bargain in comparison.

My only complaint is with the cord length before and after the noise reduction module. When wearing these and doing something active, like, say, walking, there is really no go place for that heavy battery box to go. The cord is a very awkward length where it isn't long enough that the box can reach to your pocket and thus get out of the way, but long enough that it leaves a lot of slack and regularly gets caught on stuff while walking around. While the battery box has a clip on it, it is too far down the cord for me (a pretty average 5' 11" male) to clip it to any reasonable part of my clothing (like the waistband or collar), and still have enough cord remaining to be able to reach to the phone in my pocket. As such, it ends up as a dead weight hanging from your ears, pulling on the earbuds, which then just eventually pop out.

So, 4 stars for sound quality, maybe 2 for user interface design - works out to 3 stars for the product, plus 1 for the price.
2319592
I've owned a pair of Nakamichi headphones for the last five years, and they are an excellent value!!! These are amazingly well made for the price, and have 'decent' sound, again for the price. Sound is a little muffled in the low tones, so these are perfect for watching Youtube videos and the like--which is what I mostly use them for. But...the reason I have only given them three stars is because they are too small for the average size adult (male or female), and are better suited for youth or children. They fit, but they are snug and would be too tight for regular use. Also, the ear pads are a bit small too and don't cover the ears very well--although they are well padded. Again, it's a good value, but too small. But for youth or children, I wouldn't look anywhere else, just buy them.
3490553
These headphones provide good sound and are very comfortable to wear. I removed one star because they are not as good as expected in regard to noise canceling. I can still hear the conversations around me, but they are reduced a small bit.
4031815
Excellent noise reduction and comfort- a nice combination - definitely better than super cheap ones!
774296
Read the previous reviews before I purchased and went ahead with it anyway.

The noise cancelling feature works nicely and they do work even if the noise cancelling is turned off... but it sounds like you are in a tin can.

What really bugged me was the lack of comfort.  I have a big head (7.5 ball cap) and at the most expanded setting, they fit my head fine, but grabbed it a little tight.  It is true what they say about not fitting large ears.  I figured mine ears were average sized, but I guess I was wrong as the outer cushion came down around the edges of my ear and lower ear lobe.  The comfort level on my long overseas flight with these headphones was not good.  Your kids will love them though.

They do have a nice protective case and you can add various things to keep all your personal electronics together for the flight.  That is a nice feature.

I guess I will have to bite the bullet and get some high end expensive headphones like the BOSE.  My wife was right.  I hate when that happens.
3958625
These are nearly perfect; super comfy, great sound, light and compact BUT the ear cups are a bit small for me.
2954563
I have a pair of these and i like them. Does exactly what I expected and the noise reduction at 25 DB is slightly better than most other similar products such as howard at 21DB...
Most people think that all ear muffs offer adequate protection but these offer better protection than some other slim models and these fold compact very nicely. Great for sports that make loud BANG noise.

The working principle is simple; it has a microphone and speaker for each ear (stereo). The muffs block most ALL sound (particularly low frequency type base-boom sounds). The speakers are tiny and only reproduce a narrow frequency most common with human speech. Don't expect these to work and perform like Bose noise cancelling headphones. These are intended to block harmful noise while allowing you to hear human speech around you. That's how these work and they're effective and comfortable.
605748
I'm very impressed with these both as hearing protection and as headphones. I'm in the unique position of doing graphic design and playing computer games while sitting next to industrial machinery. As noise protection, these are comfortable and immediately made a dramatic cut in the noise around me - significantly more than the rifle range hearing protection I had been using, my noise cancelling headphones, or my concert earplugs. Having the headphones built in is much more comfortable than trying to fit earbuds under my hearing protection, and the quality of sound is pretty good. These will make my life a lot more pleasant!

Edit: After a week, I've taken this review down from 5 stars to 3. These headphones are too small, and have become very painful to wear. So while they work fine as hearing protection and as headphones, I can't recommend them for use.
44167
I got these headphones to use at work.  They are small and foldable and come in a nice plastic case.  The sound clarity is terrific with enough base and every clear highlights.  It has been a while since I thought of myself as an audiophile, but they sound pretty good to me.

I like the size.  They fit snugly on my head, but don't look too obtrusive.

The only downside is that I wish I had spent the extra money and purchased the noise canceling ones.  The airconditioner vent above my desk definately adds to the noise of the environment.

But, like I said, for the money these are very nice headphones.
1803888
The headphones were reasonably priced. They work great.  The battery life is impressive. I'm wondering if you could offer them in different sizes. They are a little too small to fit comfortably.