Dust collection function, dust storage box, waterproof grade 7

1. 1200Ma large capacity lithium battery.

2. Charging, switching fast and slow two gear lights.

3. Long endurance, strong power and low noise.

4. Overcharge and discharge protection.

5. Appearance conforms to ergonomics

6. Lcd display

Discharge time: ≥ 150 minutes

Charging time: 2-2.5 hours，