Noise Cancelling Headphones by Sharper Image

Despite being titled as a noise cancellation headphones, it hardly does its job.It will probably cancel noise at a library pretty well but it won't help you much if you're walking down a street.The headstrap is very flimsy and will most assuredly break.I'm on my third pair of noise cancellation headphones since the first one's bass was too weak, the second had the headstrap broken, and I would return this one if they would let me since the headstrap broke again.It requires a single AAA battery to operate the noise cancellation and it only truly works if you have music playing as all it seems to do is increase the volume of music to drown out any outside noise.I'm no audio nut but for the original price ($69.99) I would avoid it.