Labtec Pulse 420 2.1 Computer Speaker System, Black (3 Speakers) 2.1-channel computer speaker system with wood-enclosed subwoofer Satellite speakers enrich high- and mid-range sound Max-X high-excursion subwoofer driver delivers pounding bass 40 Hz to 20 kHz frequency response 25 watts of RMS power (5 watts x 2, plus 15-watt subwoofer)