Smart Wristband with Bluetooth 4.0

Firmware Specification:
* Android + Apple system supported
* Bluetooth standard 4.0
* Far from radiation
* Activity distance/pedometer/ alarm colock/sleep monitoring/calories tracking
* Anti-lost, 5~10 meters automatic vibration warning
* Standby time: 72 H
* Multi-language

Hardware specification:
* 0.49''OLED display
* 40mAh battery
* Water-resistant(IP55 Protection grade)
* metal+TPU material
* Color: Black, brown, gray, red, bule
Accessories: USB cable* English manual
Smart Wristband with Bluetooth 4.0