Frisby FS-2400R. Audio output channels: 2.1, RMS rated power: 10 W, Recommended usage: PC. Signal-to-Noise Ratio (SNR): 65 dB. Satellite speaker type: 1-way, Satellite speakers RMS power: 6 W, Satellite speaker frequency range: 180 - 20000 Hz. Subwoofer RMS power: 4 W, Subwoofer frequency range: 60 - 250 Hz. Power source: AC, AC input voltage: 220 V, AC input frequency: 60 Hz