Good for the price, bad for noise cancelation
357655
The price is right for these of simple and inexpensive headphones. Its noise canceling function is very modest, doesn't stand comparison with other more pricey headphones. Good sounds for home listening but definitely would not do the job if you sat close the airplane engine on your travel.
2533148
I payed close to $100 for these headphones. They were supposed to be active noise cancelling,yet they were not. Plane on hopefully returning them
1928315
These aren't really noise cancelling, but noise covering headphones.  The "noise cancellation" feature really just generates some white noise and boosts the volume a little.  They trick your ears into blocking out certain frequencies.  I doubt they work as well as Bose's $300 headphones, but for as cheap as they are, they're a steal.  I work in an office where people are addicted to speakerphones and turn their conversations up so that I can hear every word clearly.  I'm a computer programmer and it's a bit difficult to work with 4 different conversations blaring in my ears.  I used to have regular headphones and would turn them up to drown out the noise (bad for eardrums).  With these, I can turn music on a low volume and can't hear a thing!  The sound quality is not so good and they smell like new plastic for the first month, but they're cheap and cancel noise well.  Also, they're collapsable and come with a battery and a nice little carrying case so they won't get scratched when you're travelling.
1145069
So as bluetooth headphones these work great. They are comfortable to wear  (even while wearing my glasses and I have a cartilage piercing). The noise canceling feature is a total joke though. The sound quality is significantly impacted and I could still hear idle conversation happening 50 feet away. Its not even worth it.

As bluetooth headphones they sound good and you sort of get what you pay for. These aren't the best but they are a good bang for your buck if noise canceling isn't a deal breaker. Im keeping them for Bluetooth functional
3004442
Concerning noise-canceling, these headphones do the job for me. Higher timbre/sharp sounds like snaps or claps will still be audible, but once I switch them on, any sort of lower humming/buzzing sounds practically disappear.
My issue with these headphones comes with sound quality. There's something incredibly 'damp' about the sound you get out of these; it gives them this cheap, dull quality- not just in the bass or treble, I mean the whole sound is muddled.
*EDIT* I've actually grown a lot more fond of these. When switched on, the sound quality is quite full and you really catch the bass well. Off...not so much. Not terrible though!
My biggest qualm at this point would be that these aren't super comfortable. I wish the ear pieces came over the ear some because they tend to slide/move after a while, and the band can start to become a pain too (no padding).
My only other fear is that I'm going to one day accidentally crush these since they're thinner, and have multiple folding/collapsible components (I could totally be wrong, but I don't want to test that).
Again, great at noise-canceling and good sound quality (on). And I'd imagine they'd do very well for frequent fliers- most likely the target demographic for this model.
1451642
I bought these headphones after seeing several positive reviews. I was aware of noise leak issue but I listen to music at low volume so I thought it shouldn't be much of a problem for me. When I got the headphones, I thought I'd ask my girlfriend if she could hear the music while I had the headphones on. Well, I got the answer to my question without asking her. As soon as I put the headphones on and turned on music, she immediately started singing and dancing to the song as if it was being played on speakers. I was aghast! I asked her to put the headphones on. I could hear the music loud and clear. The noise leak on these headphones is completely unacceptable. These headphones have a serious design flaw. They actually leak more noise when you have them on than when they are lying on table. The sound seems to get reflected from your head and goes straight out. You can't use these headphones sitting in the office or any moderately quiet place. I commute on an utterly loud bus and even on that music is audible to the next person.

Noise canceling feature - The noise canceling feature on these headphones is reasonably good although Bose noise canceling is noticeably better. It works quite good for low frequencies but high frequency noise comes right through. Still this is good noise canceling for the price.

Build - These headphones are a copy of Bose headphones in terms of physical design. They have tried to make them look very much like Bose. Otherwise build is decent.

You should get these headphones if you just plan to use noise-canceling feature and do not want to spend $300 on Bose. They offer decent noise canceling at less than half the price of Bose although Bose noise canceling is definitely better. But if you want to listen to music buy something else. I went ahead and bought Bose as I want to listen music and also not hear the loud obnoxious bus I commute on with equally loud and obnoxious passengers.
3250050
These are great for the price.  I bought them for my dad who works in a machine shop so noise cancellation is a must.  He said they do cancel out some noise, but not all of it unless he turns them up very loud  (I can't expect them to be able to cancel out everything with the sounds of the heavy equipment he's working around.)  My only complaint about them were that they don't go around the ear, they cover it..but if they enclosed it the noise cancellation would be much better.
505370
Not good in terms of noise-cancel abilities. The spring on the plug stretched too far the first time I plugged them in. I'd think of returning them but they're already damaged.
2780541
These active noise cancelling headphones will not block out all sound!  As a novice myself, I should have known better.  Instead what these headphones do is block out all low-frequency noise:  engine hums (e.g. airplane, fans, etc. PC?)

Understanding that, these headphones will do the job pretty well.  Just don't expect to go completely deaf to the outside world.  You can still hear other people speak to you.  You can still hear the TV.

Also note, if these are considered the "top of the line" noise-cancelling headphones, then other active noise-cancelling headphones basically don't work.
4620144
While these headphones work without having the noise canceling turned on, it doesn't sound nearly as good.  The battery amplifies the sound and it does sound clearer and deeper.  However, they fit on the ear and not around it, so the noise isolation isn't very good.  Don't get these for their noise canceling as I did.  The cord is also somewhat short; I had to buy a three-foot extension to comfortably reach the front of the desktop sitting near my feet at work.
1988132
These are fine, comfortable headphones. Listening to music through them is fine.

The noise canceling is pretty underwhelming.  If you pay attention when you turn it on and off, you can notice a difference, mostly in the sharpness of the noises that make it through. But actual noise attenuation is less that what you get just from covering your ears with the headphones.

I bought this for my wife for a Xmas present before she took a flight out east, thinking the noise canceling would be a great feature. After trying them at home, she didn't bother to take them.

So we have a nice set of headphones for $80+ and not really a whole lot else.
1976366
They are good headphones , just not $80.00 worth. They do a decent job at canceling noise but unfortunately they do not go around your ear very well and that results in less noise cancelling. The noise canceling is almost the same as if I had earbuds on.
3554056
I have had these for about 8 months now, and while they sound great, they are way uncomfortable on your head.  My ears start to hurt after only about 15 minutes of listening.

It is very nice that they fold up when you want to put them away in a bag for travelling.  Another problem is the sound level.  When you are on an airplane they are not noise cancelling.  I cannot play movies on my nexus 7 using these headphones.  Music is a little bit stronger, but overall they do not produce enough power, or cancel enough sound to work.  I understand that android devices don't put out much power, but I expected a little better noise cancelling from the beats.  I am currently waiting on an amplifier from Fiio to arrive to see if this helps.

As far as build quality goes, they are very sturdy, I feel like they will last a very long time, however I'm not sure I will wait that long to buy a set of cheaper better sounding over the ear headphones.

In the end I think you would be better off buying a set of Sennheisers or something comparable for much less money.  With beats I think you are paying more for the name than anything else.
2857576
The headphone cable sometimes picks up random radio stations, whether or not it is connected to an audio source, which makes the noise cancellation feature useless if I'm listening to music. That radio interference doesn't happen if the cable isn't connected, so now I just use these as $250 earplugs when I'm studying (not listening to music). The noise canceling feature works well for low and mid tones, but not most human voices or music.
At least they're comfortable. :/
2399199
The noise cancellation feature, when used by itself (no music playing), is not as effective as the advertising and some reviews claim.  It lets speech, music etc. through with very little cancellation.  It does a decent job of blocking out ambient noise, but so do good silicone in-ear headphones that cost much less and are more compact.
Other than that, this is a nice product and has an expensive feel with the carry case and build quality.  Good value, just not the best performance.  I would just stick with good quality silicone in-ear headphones.
3146706
Being married to a tone-deaf wife, she thought she was doing well. However, she considered headphones with the more advertised feature of "noise cancellation" as important. The sound quality of these headphones for the $50 price tag is very sub-par. I will say that the webservers we run are a little noisy and the noise cancellation is a nice feature (it works pretty well on these headphones) but a good earcup would suffice for me. It blocked out about 60% of the hum of the server rack (right next to me).

If you're looking for sound quality, these are not for you. They are really hollow (remember those old radio shack headphones?) If you're a Briney Spears junky and fly commercial airlines - it's a great deal. I really felt they lacked quality 1K response and it took me about 10 minutes with a parametric EQ to get anything quality out of the cups. The spectrum was false. Call me picky - but while listening to a 320Kps recording I should be 'wowed.'

These are going back to the store from where they came. I think I'll spend the $50 on some more acoustic padding and put the money toward the new Mackie Monitors that I had in mind. (I'll be able to afford them in 2010).
1762174
Over all, good headphones.  Comfortable on my head.  Useful hard case. Long cord (almost too long for me).  Find sound quality to be good(I'm not one of those super picky types).

I use them mostly on my HTC EVO listening to audio books.  If you are wondering about the noise canceling, this is the best way I can put it...  When I was sitting outside they did a good job cancelling out most of the hum of the air conditioner noise but the wind chimes were not cancelled out by anything but the physical headphone part.  They pretty much clanged right through.  They are $200 less than the Bose and do half of the job the high end Bose I tried a while back.