Stream your favourite music from a Bluetooth-enabled device such as a smartphone, computer or tablet. Output: 2 x 5 W. Range: 10 m. Volume control, 3.5 mm line-in for connecting external non-Bluetooth devices such as MP3 players or CD players. USB port for charging most Apple and Android telephones ( sync cable sold separately). Powered by 230 V mains or the built-in 1400 mAh battery, with up to 7 hours operating time. Size: 38x14.5x12.5 cm.