Descriptions: Color: Black Style: Tooth scaler set 1, Tooth scaler set 2,Tooth scaler set 3,3Pcs Replacement head Material: Silicone, plastic, stainless steel Function: LED irradiation, high frequency vibration, cleaning tooth stains, oral cleaning Mode: STRONG, NORMAL, SOFT Vibration frequency: 20000/min Waterproof rating: IPX6 Battery capacity: 300ma Charging time: 120 minutes Use time: 60 minutes Charging method: USB cable Boot mode: long press for 3 seconds Tooth scaler size: 23*2*2cm Replacement head size:7.5*1.2*1.2cm Package Contents: -Tooth scaler set 1 1Pcs* Dental scaler host 1Pcs* Replacement heads 1Pcs* English manual 1Pcs* USB cable -Tooth scaler set 2 1Pcs* Dental scaler host 4Pcs* Replacement heads 1Pcs* English manual 1Pcs* USB cable 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.