Promethean ASB-40-3. Audio output channels: 2.0 channels, RMS rated power: 20 W. Soundbar speaker RMS power: 20 W, Signal-to-Noise Ratio (SNR): 75 dB. Product colour: Black, Certification: FCC, IC, ETL, CB, RCM, CCC, PSB, EAC, BSMI. AC input voltage: 100 - 240 V, AC input frequency: 50 - 60 Hz, Power consumption (standby): 0.5 W. Width: 860 mm, Depth: 100 mm, Height: 70 mm