Noise-Canceling Headphones

All types of headphones have a certain amount of passive noise-cancellation, but recently there have been many different types of actively noise-canceling headphones. they work by pumping out sound that is the same as the external noise in both amplitude and frequency. These headphones are especially useful because they allow one to listen to their music regardless of what may be going on around the user. They are the headphones of the future.