???IPX6 Waterproof and USB charging?IPX6 level waterproof, you can rinse with water or wipe the cleaning head with alcohol cotton cloth, please just wipe the body of remover with alcohol cotton or wet cloth . Removing dental calculus at home yourself or for your pet, save time and money. Safe and fast charging via USB. Automatic power off when fully charged, automatic protection and energy saving. Importantly, one charge can be used continuously for 30 days. ???3 Modes and 3 Replacement Heads?:Our powerful tartar remover has 3 adjustable intensity cleaning modes: SOFT,MEDIUM and HIGH,LED screen Display can display power level and mode types; There are extra 3 replacement heads for your different needs, tip heads for cleaning small stains in the gums and flat heads for cleaning large tartar on the tooth surface. ???Intelligent Mode memory and 360°LED auxiliary light?: Intelligent Mode memory function, it can remember your habit of using cleaning intensity, convenient and fast; auto shut-off after 10min cleaning, safe for your teeth health; with 360°ring LED auxiliary light, when you use it with dental mirror or other mirrors, you can clearly see the inside of your teeth without any blind spots. ???No vibration and low noise?:Our plaque remover for teeth adopt high frequency vibration technology (42KHz frequency vibration for the tip) which is easily to separate plaque and calculus,this tartar remover has no vibration and very low noise during use. (Note:Some customers may think the machine is defective because it has no vibration and working sound, if you have similar doubts, please try it on your teeth or other hard objects). ???Safe and painless?: The tartar remover will only start when the cleaning head touches your teeth or hard objects, it will automatically stop vibrating when it touches soft gums, which is totally safe for your gums Food grade ABS material and medical grade stainless steel, more comfortable and easier to clean.(Note:we recommend starting with the softest mode not to let the cleaning head stay on one spot for more than 2 seconds and do not put pressure on it strongly).