1. Material: 304 stainless steel
2. Function: fresh breath, remove tooth stains, remove stones
3. High frequency vibration: 20000 times/min
4. Three-speed mode: whitening mode, gentle mode, tooth-building mode
5. Rated current: 130mA
6. Working voltage: 3.7-4.2v
7. Waterproof rating: IPX6
8. Charging method: DC interface charging
9. Battery capacity: 300mah
10. Storage temperature: -10-40 degrees Celsius
11. Features: working head with light, high frequency vibration, 3-speed mode, detachable cleaning head, compact and portable