1. Connector: USB charging
2. Use time: 4 hours
3. Working voltage: DC3.7V
4. Battery capacity: 350mAh
5. Rated power: 1.5W
6. Depth: 0-2.2MM adjustable
7. 5-speed speed adjustment: 2500, 2800, 3000, 3300, 3500 rpm
8. Ergonomic grip
9. Anti-slip design 0-2.0 laser lettering
10. The screw design is not easy to loosen
11. Convenient needle replacement, 12/24/36/3D nanochip/wafer
12. Open up the stratum corneum to double absorb moisture essence
13. Size: 11.6x2.2cm
