This is the wireless stereo system that fills a room with acoustically superior sound. It plays music wirelessly from any compatible Bluetooth device, such as an iPad, iPhone, Android phone, or a Mac up to 33' away, allowing one to keep a device handy without having it tethered to a dock. Its 80-watt audio system uses two 3" full-range speakers with Kevlar-reinforced drivers that provide precise, unmuddied sound even at high volumes. Twin 3" subwoofers placed in a push-pull configuration cancel out unwanted resonance to produce powerful, deep bass response. Its acoustically tuned sound chamber minimizes resonance for unambiguous sound while its spatial separation technology provides a binaural, immersive listening experience. It can dock with any iPad, iPhone, or iPod for charging; also charges devices with built-in USB port. 6 1/4" H x 17" W x 7 1/2" D. (7 lbs.)