Shut off the outside world with MDR-NC6 noise canceling headphones. Ambient sound can be reduced over 10dB at 300Hz, which means you'll hear more music, and less plane/train/bus noise. Noise canceling headphones are great for work, traveling, or even when you're trying to sleep in a loud place. The MDR-NC6 has a slim swivel folding design, making them more compact for storage. Includes plug adaptor to connect directly to a stereo or dual jack of in-flight music services.