Logitech Speaker System Z313. Audio output channels: 2.1 channels, RMS rated power: 25 W, Recommended usage: PC. Satellite speakers RMS power: 5 W, Satellite speaker dimensions (WxDxH): 81 x 89 x 146 mm, Satellite speaker weight: 240 g. Subwoofer RMS power: 15 W, Subwoofer dimensions (W x D x H): 220 x 228 x 150 mm, Subwoofer weight: 2.3 kg. Power source: AC, Power plug type: Type G. Connectivity technology: Wired, Line-in connectivity: 3.5 mm, Headphone connectivity: 3.5 mm