1. Charging voltage: 3.7v
2. Operating voltage: 2.6-4.2v
3. Operating current: 30ma
4. Waterproof rating: IP67
5. Built-in lithium battery capacity: 450mAh
6. Charging interface: TYPE-C
7. Hard-wearing shell, not easy to break
8. Can be placed on helmets, motorbikes, electric bicycles, bicycles, backpacks, etc.
9. Light mode: constant light, flashing, left and right, breathing light
10. Net weight: 0.075kg
11. Size: 8.7x3.5x1.5 cm