High-Efficiency 40KHz Dental Plaque Remover: This tooth plaque remover is equipped with 40KHz high frequency and 3 million times vibration per minute, which can effectively remove dental plaque, tartar and tooth stains. You have much more self-confidence when you have white and clean teeth. Painless and 100% Gum Safe: The ultrasonic tooth cleaner will only start when the cleaning head touches teeth or hard objects and will automatically stop vibrating when it touches soft gums. 100% safe for gums and friendly even to sensitive teeth. 4 adjustable operation modes for different gum sensitivity to meet different needs. Suitable for oral care of the entire family, including pets. Thorough Deep Teeth Cleaning: Together with LED light and dental mirror, it can reach hard spots and corners to ensure thorough teeth cleaning and solve most oral problems. IPX6 Waterproof: This dental plaque remover kit for human teeth is equipped with IPX6 waterproof technology, you can wash the electric plaque remover with water directly. Support wireless and portable on the go. Easy to use even for beginners: Tighten (must tighten) the cleaning head and clean it before use, then press and hold the power button for 3 seconds to open and enter soft mode, short press the power button to switch between 4 modes ( soft-Normal-Medium-strong). By touching your teeth or hard objects, it will start working. It will stop automatically after 10 minutes of operation if no button is pressed. You can also long press the power button to stop it manually. (We recommend starting with the gentlest mode.) Why do I still have tartar when I brush my teeth every day? Because food debris is not removed on time and slowly accumulates to form tartar, it causes oral problems such as bad breath, swollen and painful gums, and bleeding gums. Warm cleaning tips: 1. Use the wrench (included) to install or replace the cleaning head. Before use, make sure the head is properly installed. 2. If you feel that its power is very weak, tighten the cleaning head with a wrench. It vibrates frequently and only the cleaning head emits sound waves. 3. It will only start working when you touch hard plaques or teeth, it will not vibrate when touching soft gums. 4. Press and hold the power button for 2 seconds instead of briefly, otherwise it will fail to open. 5. Before you start using your device, make sure it is still charged, charge it fully, and then start using it if it has no power left. Package includes: 1 ultrasonic scaler 4 stainless steel cleaning heads 1 oral dental mirror 1 charging cable 1 User manual CE certified product We provide high quality products and reliable after-sales service, please remember us: Fkaikai