Bluetooth Smart Wristband Bracelet

17g Black Sport Bluetooth Smart Wristband Bracelet with 21 LED Lights Quick Detail: 1. Android Phone APK supporting 2. Sport Management 3. LED Display: 21 LED Lights 4. Bluetooth 4.0 5. Weight: 17g 6. USB charging 7. Materials: Non - toxic TPU Description: 1. Intelligent wristband record the data of sport: distance, speed, times, steps, etc. 2. When connect the phone, can answer and making calls, anti-theft, call-reminder,alarm, time display, remote control picture. 3. Has