New selfie feature allows for the speaker to be used as a camera button Support hands free profile Compatible with any Bluetooth device Product Features Model Number BTS-JM 30 Size 27*27*29 mm Materials ABS Color Red, black, blue, white, yellow,customized Battery rechargeable Li-Ion battery,support 2 hours play Certification CE, ROHS, CE EMC, CE LVD,R&TTE http://www.wirelessspeakerchina.com