Teufel Raumfeld Speaker S. System type: 2.0 system, Speaker placement: Tabletop/bookshelf, Amplifier: Built-in. RMS rated power: 50 W. Connectivity technology: Wireless, Speaker interface type: Terminal, Wireless technology: Wi-Fi. Width: 140 mm, Depth: 180 mm, Height: 200 mm. AC input frequency: 50 - 60 Hz