Bluetooth speaker with Cute cube design Support hands free profile, TF/Micro SD card Compatible with any Bluetooth device Product Features Model Number BTS-JM 16 Size 50*61*52 mm Materials ABS Plastic Color Red, black, blue, white, yellow,customized Battery rechargeable Li-Ion battery,support 3 hours play Certification CE, CE EMC, CE LVD, ROH,R&TTE http://www.wirelessspeakerchina.com