DESC: The sleek and stylish Sony DAV-IS10 home theater system delivers cinematic 5.1 surround sound through five, compact, powerful satellite speakers and a throaty, pulse-pounding subwoofer. HDMI output allows you to upscale all your standard definition material to high definition resolutions up to 1920 x 1080i. Revolutionary speaker calibration gives you the ability to automatically adjust your speakers to the optimal settings by placing the included microphone in your desired listening position. The DAV-IS10 takes the guess work out of enjoying a true surround sound experience.