Altec Lansing ADA745 5-Piece Speaker System Black design / Subwoofer / Four satellite speakers / Volume control on subwoofer and satellite speaker / Magnetically shielded satellite speakers Specifications: 95 watts total (RMS) power output / 5.25-inch driver (subwoofer) / 51 watt power output (subwoofer) / 3-inch drivers (satellite) 6-inch driver (subwoofer) / 30Hz - 18 KHz frequency response / Built-in 3.5 mm input jack Power Specifications: 120 V, 60 Hz, 0.5A