[Remove all kinds of tartar] Are you still ashamed to smile because of too much tartar, dental plaque, dental calculus, and smoked teeth? The dental scaler uses an innovative and efficient ultrasonic transducer instead of ordinary motor vibration, and the cleaning efficiency is increased by 50%, which is cleaner and more efficient. No need to go to the dentistry in the hospital, you can easily remove tartar at home[True Ultrasonic Scaler] Ultrasonic resonance: 2 million times per minute, vibration frequency: up to 40KHZ, silently remove stubborn tooth stains. Compared with ordinary electric vibrators, your hands and teeth will not have any tingling vibrations, allowing you to quickly complete unknowingly cleaning teeth. Make you fall in love with cleaning your teeth. (Reminder: There is no vibration, tingling, or noise after the device is turned on.)[100% safe gum protection] The scaler uses a high-efficiency ultrasonic transducer to intelligently identify the gums. Ultrasound does not work when it touches the gums and other soft tissues. Ultrasonic frequencies will only be generated on hard objects. [5 cleaning modes 3 cleaning heads] 5 cleaning modes with different intensities to meet the needs of different teeth cleaning. The soft mode cares for sensitive teeth, the normal mode massages the gums comfortably, the medium mode removes hidden dirt, the strong mode removes moderate stains, and the super mode strong mode removes heavier stains. It is also equipped with 3 304 stainless steel cleaning heads that are rust-proof, anti-corrosion and wear-resistant. 2 pointed cleaning heads and 1 flat cleaning head[Easy to use] The waterproof plaque remover can clean the whole body, and the LED auxiliary light will automatically light up when the device is powered on to illuminate the blind area of the field of vision. The automatic shutdown function is preset for 10 minutes to prevent the equipment from overheating. Safe teeth cleaning, easy and convenient operation for adults and children. Built-in 1500mAh lithium battery, 30 days standby. It is the best gift for family, lover and friends.The ZMD team is at your service and we hope you enjoy your life