Active Noise Cancelling Headphones use modern DSP technology to completely cancel out background noise, giving you a perfectly silent environment in which to enjoy music or video.

These headphones are an excellent choice for traveling by plane, train or in other noisy environments. The amazing Sennheiser PXC-450 combines Sennheiser's most advanced NoiseGard™ 2.0 Noise Cancelling system with the sound quality of their top reference headphones.