Power supply battery power supplyColor is blackMaterial silica gel, plasticSpecifications comply with FDAAbout this projectHigh efficiency: the household tooth cleaning kit can effectively remove hard tartar, dental plaque, dental calculus and stains, and has significant oral health benefits for people with braces and gum diseaseHigh frequency vibration: the tooth cleaner tool adopts high frequency vibration technology, which can effectively crush stubborn tartar and reduce the damage to enamel and gums caused by manual tooth cleaning toolsUSB rechargeable: the dental kit is equipped with a USB charging cable, which can be easily charged with any telephone adapter. The charging time is about 2 hours, and it can be used for about 200 minutesLed powerful auxiliary light: this tooth cleaner is equipped with LED high-definition screen and auxiliary LED light to help remove tartar or stains. You can clearly see tooth problems without leaving any corner of oral hygieneSafety material: food grade silica gel / plastic / frosted stainless steel head. 3 strength, 4 replacement heads. Comprehensive care to meet your different needs