Visaton SL 713. RMS rated power: 10 W, Peak Music Power Output (PMPO): 15 W, Frequency range: 100 – 20000 Hz. Diameter: 107 mm, Weight: 0.28 kg. Type: In-wall/On-wall/In-ceiling speakers, Dimensions (WxDxH): 135.5 x 75.5 x 47 mm, Audio output channels: 1.0