text: The headphones sound great. The only thing that is questionable is that when the noise cancelling is on, there is a slight hiss from when it is working. This really isn't a major issues, but something to consider. There is a noticeable drop in outside noise, but it doesn't seem to block repetitive noise very well such as grey noise from a TV. Also, while fainter than without the NC on, I still can hear people's conversations around me. Overall not great, but good enough for the money.