Lovemytime EM080427976. Audio output channels: 2.0, RMS rated power: 4 W, Frequency response: 200 - 15000 Hz. Power source type: Battery, DC, Battery technology: Alkaline, Battery type: AAA. Dimensions (WxDxH): 112 x 112 x 112 mm, Weight: 0.43 kg. Colour of product: Black