Like New! 1 Subwoofer, 2 Satellite speakers, control pod, user documentation. Technical Specs: total RMS power: 25 watts; frequency response: 48 Hz-20 kHz. System works with computer sound cards or audio sources that include a 3.5mm jack. It works with any major operating system including Windows, Mac, and Linux. This system provides the rich sound that you can't get from a computer.