4 modes electric calculus remover teeth whitening cleaning dental tartar scraper tooth cleaner - pink

feature: 4 adjustable modes: 4 adjustable strength modes(10000-31000 times per minute), suitable for the different sensitivity of gums.easy to start from low to high levels. rechargeable and portable: comes with a usb charging cable, easy to charge with any phone adapters.portable, small in shape, easy to carry with for travel and business trips.life. adopt usb direct charge mode, full in 4 hours, can last for 30 days, necessary for business trips.