Visaton FR 13 WP. Driver size: 127 mm (5 "). RMS rated power: 40 W, Peak Music Power Output (PMPO): 60 W, Frequency range: 70 – 16000 Hz. Diameter: 130 mm, Weight: 0.29 kg. Type: In-wall/On-wall/In-ceiling speakers, Dimensions (WxDxH): 150 x 150 x 56 mm, Audio output channels: 1.0