Monoprice Wireless 8-Inch 110-Watt Powered Subwoofer - Black (110544) Enjoy thundering bass and floor-shaking special effects without the hassle of stringing cables or wires around your room using this Wireless 8-inch 110-watt Powered Subwoofer from Monoprice The 16-bit wireless system uses the 2 This subwoofer features a wireless connection, which allows you to enjoy improved bass frequency response without worrying about wires to trip over or hide behind the baseboard