Descriptions:Color: WhiteProduct name: Ultrasonic electric dental scalerVoltage: 3.7-4.2VBattery capacity: 500mAhCharging method: USB interface chargingGear position: three gear adjustment CONTINUED STANDBY READY-TO-USE HANDHOLD TRAVEL PORTABLE ULTRASONIC ELECTRIC TOOTH CLEANER STRONG CORE POWER NEARLY 210W JOBS PER MINUTE MULTIPLE ORAL PROBLEMS THE NET IS EASILY SOLVED IN MASTERING THREE KEY ON-DEMAND SWITCH 316 STAINLESS STEEL CLEAN HEAD HYGIENIC,CONVENIENT AND SAFE TO USE LET DIRT HIDE NO PLACE LED AUXILIARY LIGHTS ILLUMINATE BLIND AREAS ERGONOMICS CURVED BODY DESIGN GOOD GRIP ONE MORE OPTION REPLACEABLE CLEANING HEAD 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 (2100000 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 busine 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.