ACOUSTIC RESEARCH Wireless 5.1 Dolby® Surround Sound Headphones

* 5.1 digital surround sound * Hi-def 2.4GHz wireless transmits true audio sound through walls, floors and ceilings up to 100' from transmitter * Digital sequence spread spectrum wireless technology * Decodes Dolby® AC3, Pro Logic® II, DTS and AAC * Uncompressed audio for CD quality music and extra voice clarity * Proprietary design: 3 high-performance speaker drivers in each earcup * Lightweight, padded, self-adjusting, comfortable headband * Protective sound pressure level control * Frequency response: 20Hz-30KHz * Multiple input sources analog, fiber optic and SPDIF * Li-poly battery for extended life up to 8 hours * Includes power adapter