The BonaFide guys are laying it down for you if you're in the market to pick up a pair of these headphones anytime soon. I personally don't think I'd wear noise cancelling 'phones, cuz I think it'd get me in trouble with the wife if I couldn't hear her at all whilst gaming... then again...

"Noise-cancelling headphones use tiny microphones that identify the noise or sounds outside the headphones and then work to cancel out the sounds. Noise-reduction headphones (also known as noise-isolation headphones) reduce sound by being a barrier through which sounds cannot pass. What does all this mean? And how do these two differ?"