Main Features
1: Screen Size: 1.4 Inch
2: Water Resistance: IP68
3: Chip: Nordic NRF 52840
4: Bluetooth Version: BT 5.0
5: System Requirement: Android 4.4/IOS 8.0
6.Operating Mode: Touch screen/button
7.Battery Capacity: 260mAH
8.Charging Time: 2-5 hour
9.Use Time: 7-10 days normally use
10.Standby Time: 30-35 days
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