Material: ABS Color: white, green, black Size: 21.5*2.5*2.5cm Weight: 0.19kg Packing size: 24.5*10*3.5cm Charging method: USB interface Battery: Lithium battery Rated voltage: 3.7V Rated current: 200mA Power adapter: 5V Vibration frequency: 22000 times/min Charging time: about 2H Waterproof rating: IPX6 Effective cleaningThis dental scaler uses high-frequency sound waves 31,000 times per minute to clean your teeth and freshen your breath, whichis an indispensable helper for oral care. Five-speed modeThe five-speed mode is suitable for different tooth conditions and meets the needs of different groups of people. One key can switch modes, simple and fast. Five-speed modeThe five-speed mode is suitable for different tooth conditions and meets the needs of different groups of people. One key can switch modes, simple and fast. USB chargingUSB universal interface, can be connected to mobile power, computers and many other digital products for charging, long-lasting battery life, convenient for you to use anytime, anywhere.