Good noise cancelling feature, though it mostly blocks out lower frequencies more than high frequencies- the rumble of the air conditioner and a fan is muted, but a faint hiss of moving air remains.

Nice sound quality but the noise-cancelling feature is disappointing.

They do require a AAA battery for the noise canceling feature to work.

The noise cancelling feature make a very noticeable difference qhile on the plane.

The noise canceling feature alone is

With the noise cancelling feature ON I could still hear me snap my fingers, people talking, my AC running

Add on a very capable noise canceling feature, and these headphones are remarkable.

The Noise Cancelation feature works, but isn't - again, like the $200+ models - perfect

Nice feature

I also wear them in my cube with the noise cancelling feature on if my coworkers are being loud.

I used them outside one and had the noise cancel feature turned on but ended up turning it off because the wind noise was the only thing that got louder and very annoying.

The noise cancelling feature takes a few minutes to really take effect, or at least that's how long it took me to notice all the ambient noises I wasn't able to pick out anymore

The noise canceling is a great feature as well and really helps me focus during studying

The fold-flat feature is convenient for travel

I can't even hear the noise cancelling feature and it's on

He's watching the 100 with 5.1 surround sound, and I'm listening to imagine dragons (noise cancelling feature on) and I can't hear his show at all

I had to disable the noise-cancelling feature in that case, which kind of makes sense since it relies on mics to listen for, and attempt to negate

Disappointed since I got them for the noise cancelling feature

Sound quality is also disappointing when the noise cancelling feature is turned off - it's fairly good with the feature turned on, but drains the battery.

If you need the wonderful feature that is noise cancellation, move along, because you will not find the headphones you are looking for in these.

Noise cancelling feature really reduces airplane background engine noise.

I see no difference in the sound isolation with the noise cancelling feature on.

For their price, those are adequate features

The noise-canceling feature does not stay on

The feature simply does not work

Sound and comfort are excellent, noise cancelling feature not so much.

I like the ear pads and noice canceling feature blocks out some noise.

No noise canceling feature

Don't buy it if you want noise cancelling feature

The audio sounds better if you have the noise canceling feature on

Works well, great noise cancelling feature.

They don't completely block out all loud noise, but they do block out a good amount with the noise canceling feature on

work as we had hoped, very happy with this product

Not as good as the $300 Bose and Sony sets, but about one-tenth the price, and much smaller!

They have a nice write up in the manual explaining why it won’t cancel noise as you expect but there are brands that offer true noise canceling.

I have used it on airplanes, buses and trains, as well as in office and home.

Returned them and went back to my inexpensive "noise isolating" earbuds that block out external noises much better, as well as has much fuller sound quality.

In summery, great headphones, just not as durable as

The headphones come with a two-prong attachment to use on older planes which we joked about as we have not seen a plane with those outlets for 15 years.