1. Battery charging time: 1 hour
2. First gear working voltage: 3.5v, current 115mA, speed 5500
3. Second gear working voltage: 4.1v, current 137mA, speed 6700
4. Third gear working voltage: 4.1v, current low speed 3.3mA, current high speed 147mA, speed 6700
5. First gear working hours, 2 hours 36~44 minutes
6. Second gear working hours, 2 hours 06 minutes - 11 minutes
7. Three working hours, 3 hours 40-47 minutes
8. Material: ABS + electronic components
9. Product size: 16 x 28 x 64mm
10. Product net weight: 22g
11. Battery capacity: 270mAh
