Introduction This device uses high frequency vibration to help remove dental tartar, calculus, smoke stains, tea stains, etc., and restore healthy, clean teeth. Three professional cleaning heads work together to perform cleaning and polishing in one machine; the third mode can be freely selected to meet the needs of different users. The overall design is simple and intuitive, and easy to use. It is an oral care tool suitable for family use. Note 1. This device is for adult use only. Keep away from children to avoid accidental injury. 2. Do not immerse the body of the device in water. 3. This device is equipped with a rechargeable battery. Please do not put it into a fire or charge it. Please use and store it in a high temperature environment. 4. Do not touch the working head with your hands when the equipment is working to avoid injury. 5. If the equipment is obviously damaged, do not use it. High efficiency: high frequency vibration, good anti-scaling effect. Versatile: 3 cleaning heads, 3 modes, solving a variety of problems. Reliable: stainless steel working head, waterproof body, safe and intimate: LED lamp auxiliary lighting, precise positioning of scale spots and environmental protection Built-in 250MAH rechargeable battery, durable The green light flashing indicates that the device is charging. 2. Use a DC charging cable to connect the device to a 5V/1A adapter (not included), then turn it on. 3. During the charging process, the three mode lights flash green and automatically turn off when fully charged. Use steps 1. Select and install an appropriate cleaning head. 2. Clean the tip with water or alcohol. (Note: It is recommended to use alcohol for disinfection.) 3. Press the