Altec Lansing FX3022 Expressionist BASS 2-Way Speaker for PC and MP3 (Black) Computer speaker system with subwoofer built into speakers Built-in amplification provides 25 Watts Custom built 40mm drivers provide clear and realstic sound Auxiliary input lets you connect MP3, CD, and DVD players Measures 5.25 x 10 x 5.25 inches (WxHxD); backed by one-year warranty