Logitech Z407. Audio output channels: 2.1 channels, RMS rated power: 40 W, Recommended usage: Universal. Satellite speakers RMS power: 10 W, Satellite speaker dimensions (WxDxH): 3.66 x 3.35 x 7.83" (93 x 85 x 199 mm), Satellite speaker weight: 13.7 oz (389.6 g). Subwoofer RMS power: 20 W, Subwoofer dimensions (WxDxH): 9.21 x 7.09 x 9.45" (234 x 180 x 240 mm), Subwoofer weight: 5.4 lbs (2.45 kg). Power source: AC, Power plug type: Type C. Cables included: AUX