Concerning this item 820W of output power Integrated DTS and Dolby Atmos: X decoding You can experience true surround sound without any cables by using detachable, battery-operated surround speakers. With a 300W, 10" powered subwoofer and Ultra HD 4K Pass-through with Dolby Vision, enjoy rich bass. Optical connector type The main soundbar, two detachable wireless surround speakers, a wireless subwoofer remote control, power cords, and an HDMI cable are among the included components. Two L-shaped wall brackets for the main bar, two U-shaped brackets for the surround speakers, and a screw kit Type of Power Source: Electric Cord Wireless Wi-Fi is a communication technology. No matter the room, use the built-in calibration to get the best sound possible.