Material: entrance grade silicone + plasticUse environment: room temperatureApplicable people: AdultStyle: rechargeable (built-in battery)Product size: 190*30.5*20.5mmProduct weight: 53gRated voltage: 3.7VRated current: 200 mAStandby current: ≤20uaBattery specification: 300 mAhPower adapter: 5V 500 mACharging time: less than 2 hoursMotor noise: less than 60 decibelsService life: more than 1 yearPacking method: heaven and earth boxColor box size: L22.5 x W8.0 x H3.5cmThis product uses a cleaning head with the same structure as that of a dentist. The powerful power can effectively remove obvious tartar. The silicone body has a generous appearance, comfortable feel, easy to operate and easy to carry; it also has a certain cleaning effect on dental plaque and dental stains. . Allows you to clean your teeth at home without leaving the house.Package includes:1* machine,1* data cable1* manual1* color box