Beware with these headphones unless you have a fairly small head. I am a normal-sized male and these headphones never properly closed over my ears. From the pulling down on the headphones, the hinge connecting the right and left sides gave out after a few months. Other than the poor build quality, the sound was about what you would expect for the price ... not bad but not great, either. The noise reduction adds a white noise to the output, but I never tried using it in crowded or noisy areas.