Good product for the price, not really any noise cancellation
353050
Good product for the price. I bought a pair without the noise cancellation earlier and was satisfied. I thought the noise-cancellation would be a nice addition, but I can't hear any difference between them. They don't really cancel out any noise, but these do have better range.
3240540
Good sound quality and noise cancellation for the price. Just like another reviewer I agree that when the active noise cancellation is on the audio level outside the headphones is loud. People tell me that I have it up too loud and it will damage my ears, well it seems to have speakers on the outside because it is loud and bothers others. Well, at least I have my peace and quiet lol. If using on a cell phone I have the verizon iphone 6 it occasionally has interference from the phone transmitting. Not very often but is annoying to have in your ear.
1368292
Overall, a good product for the price, and was easy to synch to my iMac and iPad. Sound was balanced for audio tracks but had a noticable lag with video. Bluetooth will always have some latency, but a quarter to a half second is too much when trying to follow multiple conversations on video. Fit was tight on my medium size head, but would stretch with use. I was disappointed that the headset is an "on the ear" headset, not an "over the ear" headset which I prefer, and had little sound isolation. I could hear a desk fan on low over the music I was listening to. I will keep the headset for occasional use but rely on my wired Bose earbuds for general use.
902566
Volume doesn't go as loud as I would like; other than that, the product does exactly what I need it to do with not too many frills.
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.
273564
this product is very good, mainly for the price. But it doesn't have that quality of sound I was waiting for
4541714
Not very noise cancelling, but still decent quality. If there's background noise in the room, this mic will definitely pick it up, though it won't be that loud, it's definitely noticeable.
556240
For listen to music and other items it is ok.  For phone calls, there is no noise canceling on microphone and people complain of background noise.  Typing on my keyboard comes through very loud.  Can not use in office enviroment.  If you only want to use it as headphones, then good product.
58356
not very loud when connected to my phone, but the audio quality is pretty decent and they shut out the surrounding noise fairly well, I'll have to try them with a stronger signal source.
7629
They work ok for the price, but the aren't noise canceling at all, so if this is the reason why you are getting them, maybe you should keep looking.
4102138
So I just got them and here are initial thoughts.

Good: Nice packaging and appreciate the seller sent a link to the video about how to connect them via bluetooth.  Successfully connected them to both phone and computer pretty easily.

Less than good:  These are quite tight on my (admittedly large) head and not comfortable.  And this is even more so when wearing glasses.  The noise cancellation feature does something, but not what I wanted.  With the feature off, they are essentially noise isolating and do a pretty good job of blocking out background noise such as the HVAC system running nearby.  But turning On the noise cancellation creates a white noise background that is louder then when the feature is off and requires you to turn up the music to hear it more clearly.  I've never tried a pair of Bose Noise cancelling units so I don't know if that is to be expected.

Where does this leave me?  Try another over ear set? Go to in ear units either with or without noise cancelling?
2218587
Simply doesn't provide noise cancellation.  Just gets a slight bit louder.  I guess that's noise cancellation.  If your looking for cheap headphones then this is for you.
1617916
There are no noise canceling. The power on button for the voice cancelling "system" is just a gimmick  with a red led on it. The sound is on par with any other headphone at this price although the bass is pretty weak. Not the most comfortable panasonic device and the design is pretty ugly.
4780605
These are so far a decent product, though not a home run. I don't think I'll buy this style of headphones again because the bars pinch my ears a bit at the top. The sound quality is good, and it muffles external sounds quite nicely. They are light and don't move on my head, though the bar in the back sometimes pushes them forward if I tilt my head back. They pair quickly and easily and I haven't had much of an issue with them losing their pairing though it's happened once or twice so far in a couple weeks of having them. I haven't tried the phone feature since I use them with my nexus 7 most of the time.
4239712
These have the pro's and con's of most of the other inexpensive bluetooth headsets I've owned.

Pro's:
* Pairing was easy (Apple MacBook Pro and iPhone 6). Additionally, I can have them paired to both at the same time, which not all bluetooth headsets seem capable of.
* Sound is louder than I expected, and full
* Headphones block out a lot of ambient noise

Con's:
* The mic doesn't work good enough for phone calls.
* There's an audible buzzing sound when there's no audio coming through
* They start feeling too tight after a few hours.
* As far as I can see there's no button to activate Siri voice commands.

I find myself using these in the office and preferring a lighter weight, over the back set of bluetooth headphones for my commute even though they don't block out as much ambient sound.
The tl/dr: it is what it is, good-enough headphones for the price.
1538068
The sound quality is good for the price and they look better than most expensive headphones out there. The noise cancellation feature doesn't completely cancel noise, (I can still hear my coworkers conversations from about 10 feet away), but I didn't expect sony level NC at this price. They're on the heavier side, which I knew about before purchasing, but I still tried jogging with them and they kept sliding off. If you're looking for workout headphones, these aren't for you, but they're perfect for using while working/studying/etc.
2550396
Works well.  A volume control would be a nice option but not necessary.  They fit comfortably and the three different size ear pieces provide a reasonable solution for most people.  Good product for the price.