Feature: This product uses a cleaning head with the same structure as the dentist. With strong power can effectively remove obvious calculus. The silicone body has a generous appearance, comfortable feel, easy operation and easy to carry; it also has a certain cleaning effect on plaque and dental stains. . Allows you to clean your teeth at home without leaving home.1.2000 million /min ultra high frequency vibration to remove dental calculus (more effective than generation)2. LED auxiliary light display ,operation is more convenient3. IPX6 full body waterproof ,ultra-long service life4. Can be transformed into electric toothbrush in seconds ,can be used by the whole family5. With frosted flat teeth to remove smoke stains and tea stains! Introduction: Input voltage :AC100V-240V,50HZ/60HZ(5V1A)Rated voltage :3.7VRated power :1.5WVibration frequency :37KHZBattery capacity : 650MModes :Soft /Comfort /Standard /Strong / Superstrong Items in the package: Machine body x1Dental mirror x1Metal cleaning head x2USB power cord x1 How to use : 1.Please plug in the power cord to turn on, if the indicator light is on, it means it is turned on.2.Please select the appropriate work tip (work tip should be tightened with a small screwdriver), so it can be operated on the teeth when installed (slightly use a little force on the calculation when operating).