Keyteck SP-B1000. Audio output channels: 2.1, RMS rated power: 20 W, Recommended usage: PC. Satellite speaker type: 1-way, Satellite speakers RMS power: 8 W, Satellite speaker frequency range: 200 - 20000 Hz. Subwoofer RMS power: 12 W, Subwoofer frequency range: 20 - 230 Hz, Subwoofer impedance: 4 Ом. Power source: AC. Set weight: 1.92 kg