Bose Personal Music Center III Radio frequency remote controls any device connected to your Lifestyle system and provides system information outside the main room Use with Bose link-compatible products to expand sound from your Lifestyle system to another room or outdoors Includes "Party" feature, which links all connected expansion products to the source playing on your Lifestyle system. Backlit LCD screen with layered menu display for quick access to relevant system info Compatible with the following Bose systems: Lifestyle V35/25, 235, or 135 and works through most walls, floors and ceilings