Artes ART-SP3050. Audio output channels: 2.1, RMS rated power: 20 W, Recommended usage: PC. Signal-to-Noise Ratio (SNR): 50 dB. Satellite speakers RMS power: 5 W, Satellite speaker frequency range: 40 - 18000 Hz, Satellite speaker impedance: 4 Ом. Subwoofer type: Active, Subwoofer RMS power: 10 W