they cancel noise ranging from the background noise of the library to the loud street sounds

Very good on an aeroplane to knock out background noise

The noise cancelation blocks out most background noise, leaving what little remains to be drowned out by the sound of the headphones

But it really annoys me when I hear the background noise

background noise - listen to nothing but near silence - great for peace and quiet)

background noise - listen to nothing but near silence - great for peace and quiet)

By the way, I don't have experience with noise canceling headphones before, I just tried beats studio on in target, but I didn't notice any background noise which might because of the surrounding voices

With The Beatles, there was SO MUCH extra background noise you would hear

Some reviewers have complained about the background noise

The noise cancelling does produce a slight background noise when in idle, so don't be surprised when you hear something along the lines of mild static

My daughter loves these and they are wonderful at canceling out background noise

The price is, as you can see, too expensive to be bought when you aren't using it often

Bass is hard hitting, but not as annoying as in the QC15

And the mods and highs were not nearly as crisp as you should have from a pair of $300 headphones

They do not perform nearly as well as at least two other over the ear headphones that I have owned.

It doesn't bother me as I can hear it only when there is no music or video playing

[a lot of headphones make u look like a douche]...

Great i like