1. Tool head material: ceramic
2. Power: 5W
3. Voltage: 5V
4. USB charging
5. Soft and low noise
6. Immersion type washable head
7. Built-in 500 mAh lithium battery
8. Strong power, smooth and not stuck
9. Ceramic cutter head, multi-stage adjustment
10. R-shaped arc grinding of corners to fit the curve of the scalp
11. Unit weight: 0.6kg
12. Size: 17.5x4.5cm