Labtec Pulse 475 Speaker System (2.1) 2.1 stereo powered speaker system; satellites: 4 x 7 x 2.25 inches; subwoofer: 6 x 7.5 x 10.5 inches (W x D x H) 8 watts per channel x 2 plus 12 watts for the 5-inch subwoofer (RMS), 56 watts total peak power Flat-bodied satellites conserve space; Max-X ported subwoofer moves more air and delivers deeper bass than sealed speakers 48 to 20,000 Hz frequency response Includes AC power adapter and color-coded speaker cables