About this item Premium Materials: Food-grade silicone/PC/ABS/304 stainless steel head, IPX6 watertight structure. High-Frequency Vibration Technology: With ultrasonic vibration to clean up teeth stains and solve most of the problems, such as dental calculus, tooth bacterial plaque. The electric dental calculus remover can be operated for gentle calculus removal by a hand. Battery And Portable: Comes with 1 AAA battery, easy to use.Portable, small in shape, easy to carry with for travel and business trips. Household Dental Care: Using the remover in your current dental care routine will decrease the level of bacteria in the mouth resulting in a fresher breath. Gentle At-Home Dental Cleaning System for Healthier Gums & Whiter Teeth Ultrasonic Dental Pick with LED Light Sonic Pulses Help Safely Remove Dental Plaque, Tartar & Tooth Stains Safe for Crowns…