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Material: ABSColor: white, green, blackSize: 21*2*2: zero size: 24*10*3 method: USB interfaceBattery: Lithium batteryRated voltage: three current: 200mAPower adapter: 5VVibration frequency: 22000 times/minCharging time: about 2HWaterproof rating: IPX6 Effective cleaning—This dental scaler uses high-frequency sound waves (31,000 occasions in step with minute) to wash your tooth and freshen your breath, which is an indispensable helper for oral care mode—The five-speed mode is appropriate for different teeth situations and meets the needs of alternative groups of people. One key can exchange modes, straight forward and fast. Five-speed mode—The five-speed mode is acceptable for various enamel situations and meets the purposes of other groups of people. One key can swap modes, simple and fast charging—USB typical interface, can be linked to mobile power, computers and many different electronic merchandise for charging, long-lasting battery life, convenient for you to apply anytime, anywhere.