This wireless transmitter and receiver package is the easiest way to expand select Lifestyle® systems. It delivers two independent audio streams from your system to a Bose link-enabled product in a second room. No room-to-room wiring required. Enjoy quality sound from up to 80' away. * Extends benefits of Lifestyle® system by providing wireless audio in a second room. The transmitter supports up to seven additional AR1 receivers (purchased separately) for wireless sound throughout the home * No costly, disruptive wiring installation required. Radio frequency operation transmits two independent audio streams from your Lifestyle® system to other rooms * Proprietary Free Field® circuitry limits interference from other devices – like cordless phones and wireless Internet connections – and virtually eliminates echo effect of wireless signal playback in another room UPC: 017817371483