Haier SBC20, 2.0 channels, 20 W, 20 W, 7.62 cm (3"), Black, Wired Haier SBC20. Audio output channels: 2.0 channels, RMS rated power: 20 W. Soundbar speaker RMS power: 20 W, Full-range driver diameter (imperial): 7.62 cm (3"). Product colour: Black. Connectivity technology: Wired. Power source: AC, AC input voltage: 100-240 V, AC input frequency: 50 - 60 Hz