Color Black Model M28 Material Silicone + aluminum alloy Quantity 1 Piece Shade Of Color Black Bluetooth Version V3.0 Operating Range 10m Standby Time 190 Hour Applicable Products IPHONE 5IPHONE 4IPHONE 4SIPHONE 3GIPHONE 3GSIPADOthersSamsung HTC XiaoMi Sony Nokia Lenovo Smartphone Battery Type Li-polymer battery Built-in Battery Capacity 230 mAh Plug Specifications OthersUSB Other Features Language: English Chinese; Features: hands-free calls music sync date / time / SMS instant message remind burglar alarm alarm clock altitude meter etc. Packing List 1 x Bluetooth watch 1 x Data cable (80cm) 1 x English user manual