The TDK Life on Record NC-150 Noise Cancelling Over-Ear Headphones feature active noise cancellation that provides up to 12dB of outside ambient noise reduction. The noise cancellation feature can be used with or without audio playback. The foldable over-ear design has soft earpads, earcups that swivel, and a padded headband for added comfort during use. An in-line volume control allows you to adjust your playback level without adjusting your playback device. The NC-150s can be used for audio playback and ambient noise reduction while traveling or at home.