Color Black Brand W-watch Model W320S Material Resin Quantity 1 Piece Shade Of Color Black Bluetooth Version V3.0 Operating Range 5~20M Standby Time 168 Hour Applicable Products OthersSamsung / Xiaomi / Android Battery Type Li-polymer battery Built-in Battery Capacity 190 mAh Power Supply 3.6~4.2V Other Features Product features: answer the phone and make a call sync phone book incoming number display receive SMS clock remote shutter etc; Supports language: simplified Chinese and English. Packing List 1 x Watch 1 x Chinese user manual 1 x USB cable (55cm)