DX: Cyband IP67 Bluetooth V4. 0 Smart Watch Wristband Bracelet

Cyband IP67 Bluetooth V4. 0 Smart Watch Wristband Bracelet w, Sports, Sleep Tracking Black Product link: More gadgets: Cyband is a smart device that can be worn on wrist; Builtin 3D sensor, vibrating motor and liion battery; Can record realtime data of exercise and sleep in daily life and can sync this data with smart phones or PC, leading you to a healthy life; Supports