Safe and painlessThe 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 (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).Food grade ABS material and medical grade stainless steel, more comfortable and easier to clean. High Efficiency CleanDental picks for teeth cleaning use real sonic high-frequency vibration technology,dental tools can remove dental calculus and coffee stains,with the dental mirror can better deal with dental stains on the back of the teeth No vibration and low noiseOur 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. (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). Best Gift for Your LoverMother's Day, Father's Day,Birthday,Christmas and general holidays send plaque blaster for human teeth is the best choice Loved by family,friends and the elderly.If you encounter any problems with the product,feel free to leave a message Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-YJL official store