Wireless music adapter for Bluetooth audio devices Play music from your Bluetooth-enabled smartphone or laptop via hi-fi system Directly control of music via smartphone, laptop, etc. Bluetooth specification 2.1 + EDR Compatible to A2DP und AVRCP Reach: 10 m, Class II Standby: 230 hours / Working time: up to 12 hours Dimensions: 54 x 33 x 8 mm Incl. USB charging cable