Kraun KR.JD. Audio output channels: 2.1, RMS rated power: 18 W, Recommended usage: PC. Signal-to-Noise Ratio (SNR): 58 dB, Amplifier/receiver input interface type: 3.5 mm jack. Satellite speaker type: 1-way, Satellite speaker frequency range: 40 - 18000 Hz. Power source: AC. Satellite speaker dimensions (WxDxH): 130 x 130 x 116 mm, Subwoofer dimensions (WxDxH): 219 x 190 x 245 mm