Philips AS351. Audio output channels: 2.0, RMS rated power: 10 W, Driver size: 76.2 mm. Headphone connectivity: 3.5 mm, Bluetooth version: 2.1+EDR, USB connector type: micro USB A. Power source type: AC, Battery, Battery technology: Alkaline, Input voltage: 100 - 240 V. Width: 271 mm, Depth: 130 mm, Height: 90 mm. Cables included: AUX