Waterproof level: IPX6 waterproof. Electric Teeth Cleaner Portable Household Toothbrush Tartar Remover Tartar Cleaning Whitening Teeth USB Charging. 6- gear tooth cleaning mode s : a variety of cleaning options, from gentle to strong, all-round vibration cleaning without dead angles, deep cleaning, effective removal of smoke stains, and easy disintegration of stubborn dental calculus.
eBay