Brand:WEST BIKING
Shell Material:PC
Charging Method:Type-C 5V/1A
Battery Capacity:Basics Version 3.7V 500mAh
Upgraded Version 3.7V 1100mAh
Waterproof Level:IP55
Size:Basics Version 3*3*3cm
Upgraded Version 3.5*3.5*2cm
Weight:Basics Version About 24g
Upgraded Version About 29g
Features:Vibration Sensing/Digital Display/6 Lighting Modes