Features High-frequency vibration technology: Clean tooth stains through ultrasonic vibration, and solve most problems such as tooth integral and dental bacterial plaque. The electric tooth calculus can be operated manually to gently remove the calculus. 3 Adjustable modes: 3 adjustable intensity modes (10000-20000 times per minute), suitable for different gum sensitivity. Easy to start from low to high level. Charging portable: with USB charging cable, convenient to use any mobile phone adapter to charge. Portable and compact, it is convenient to travel and carry on business trips. Home dental care: The use of removers in current dental care procedures will reduce the level of bacteria in the oral cavity, resulting in fresh breath. Specifications:Color: BlackStyle: Tooth scaler set 1, Tooth scaler set 2Material: Silicone, plastic, stainless steelFunction: LED irradiation, high frequency vibration, cleaning tooth stains, oral cleaningMode: STRONG, NORMAL, SOFTVibration frequency: 20000/minWaterproof rating: IPX6Battery capacity: 300maCharging time: 120 minutesUse time: 60 minutesCharging method: USB cableBoot mode: long press for 3 secondsTooth scaler size: 23*2*2cmReplacement head size7.5*1.2*1.2cm Package Included:Tooth scaler set 11Pcs* Dental scaler host1Pcs* Replacement heads1Pcs* English manual1Pcs* USB cableTooth scaler set 21Pcs* Dental scaler host4Pcs* Replacement heads1Pcs* English manual1Pcs* USB cable