"【Ultrasonic Technology Tooth Remover】- This Calculus remover effortlessly and quickly removes teeth stains from even the hardest to reach areas to mantian your teeth and gums healthy.^ 【Easy & Convenient to Use】-There are 3 adjustable modes for your teeth cleaning according to your favor. Each button has a recognizable function to simplify your operation. USB charging makes the tarter cleaner convenient to recharge anytime.^ 【Safe & Premium Materials】- With alloy steel and food-grade silicone, the plaque remover is much safer than other same kind of teeth clean tools. Using it about once a month could be helpful to avoid toothache and gum illness.^ 【Humanized】-Conforms to ergonomics, the silicone handle feels great when holding. With charming color and portable size, this lightweight tartar remover is absolutely a great teeth care product for you and your loved ones.^ 【Time & Money Saving】-No need for floss, water flosser or mouthwash. Enjoy teeth cleaning at home whenever you want!IPX6 waterproof technology allows you to directly rinse the whole device under the faucet after each time."