These are the wireless headphones that deliver rich, clear surround sound. The headphones use 7.1 channel sound and 40-mm drivers to transmit music, dialogue, and background sounds as if they‘re surrounding the listener, creating a truly immersive listening experience. The included transmitter plugs into a television or stereo and connects to the headphones via a radio frequency that does not require line-of-sight transmission, enabling true freedom of movement for the user. The headphones connect to the transmitter from up to 42' away their rechargeable battery lasts up to 20 hours after a three-hour charge via the transmitter. Also compatible with DVD players, game consoles, and stereo systems. 7 1/2" L x 7 1/2" W x 3 3/4" D. (10 3/4 oz.)