Approx APPSP2101V2. Audio output channels: 2.1, RMS rated power: 16 W, Recommended usage: PC. Amplification device type: amplifier, Amplification device form factor: built-in. Satellite speakers RMS power: 4.5 W, Satellite speaker frequency range: 180 - 20000 Hz. Subwoofer RMS power: 6 W, Subwoofer frequency range: 30 - 180 Hz. Satellite speaker dimensions (WxDxH): 77 x 59 x 138 mm, Satellite speaker weight: 0.402 kg, Subwoofer dimensions (WxDxH): 171 x 148 x 171 mm