Ether 5BTR - It offers cutting-edge sound performance and an elegant design. With Bluetooth function and you could connect to any devices with Bluetooth. Also included RM Radio, SD Card and USB slot. 3" full range satellites and 4" bass driver (enclosed) Connect to any computer, laptop, discman, CD player with 3.5mm audio jack. Total Power (RMS) : 30W Woofer (RMS) : 22W (4”) Sarellites (RMS) : 6W (3”) x 2 Distortion : ≤1% Power Supply : 230V 50Hz