The Bose Noise Reduction Headphones.

Used by travelers to reduce aircraft engine noise, and by others preferring tranquility in their work, these streamlined Bose QuietComfort 2 Acoustic Noise Cancelling headphones are renowned for their fuller-spectrum noise reduction and comfortable fit. In addition to in-flight noise, the headphones diminish office distractions, commuter train clatter, and other constant low-frequency sounds without compromising audio quality, allowing you to hear details and nuances of recordings. Ergonomic earcups fold flat for easy transport or packing, and are comfortable for long-term wear. Includes carrying case, 5' extension cord, adapters, and one AAA battery for up to 35 hours of use. 7 3/4" H x 6 1/2" W. (7 oz.)