"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?"
FULL STORY @ BONAFIDEREVIEWS (http://www.bonafidereviews.com/article.php?id=117)
