Color White + Black Material Plastic Quantity 1 Piece Bluetooth Version V2.1 Operating Range 15 meters Standby Time 8~10 Hour Applicable Products OthersSuitable for most devices with Bluetooth function Battery Type Li-polymer battery Built-in Battery Capacity 170 mAh Plug Specifications OthersPowered by USB cable Power Supply 5V Certification FCC / CE Other Features Stylish and mini Bluetooth transmitter; Easy to use; Transmit the music/voice of TV to Bluetooth receiving device; Super clear and fluent speech effect Packing List 1 x Bluetooth transmitter 1 x Audio cable (150cm) 1 x USB cable (80cm) 1 x 3.5mm male to male adapter 1 x Chinese/English user manual