Specification
Bluetooth: Bluetooth 5.1
Matching Systems:Android 5.1 or iOS 10.0 or later
Screen: OLED,0.42 inch,72*40
Battery capacity:50mAh Charge case battery capacity:120mAh
Material:Aluminum alloy
Button:1 button
Charging port:Pogo Pin
Theoretical working hours:up to 7 days in typical usage/up to 30
days in basic usage
Sensors:Vibration Motor
Size: 18mm & 20mm OR 20mm & 22mm compatible
Weight: 20g