Visit Amazon sites : br Altec Lansing ADA745 5-Piece Speaker Systembr br Black design Subwoofer Four satellite speakers Volume control on subwoofer and satellite speaker Magnetically shielded satellite speakers br Specifications 95 watts total RMS power output 525-inch driver subwoofer 51 watt power output subwoofer 3-inch drivers satellite br 6-inch driver subwoofer 30Hz - 18 KHz frequency response Built-in 35 mm input jack br Power Specifications 120 V 60 Hz 05A