Item Type: Electric Tooth CleanerBattery capacity: 250mAhCharging method: DC chargeOperating voltage: 3.7 ~ 4.2VRated current: 130mA maximumWaterproof level: IPX6Storage temperature: -10 ° C-40 ° cCleaning head needle: Suitable for removing small stonesCleaning head hook: Suitable for removing large stonesFlat cleaning head: Suitable for removing stains from teeth, polishing and lighteningFeature:【Effective】-High frequency vibrations provide excellent tartar and stain removal effect.【Multi-purpose】-3 cleaning heads and 3 modes to solve various problems.【Reliable】-Stainless steel work tip, waterproof body, safe to use.【Intimate】-Auxiliary lighting LED lamp, precise positioning of tartar and stains of teeth.【Environmental protection】-Built-in 250 mAh rechargeable battery, long-lasting battery life.【Easy to use】-Intuitive two-button layout, effectively prevents operating errors.【Comfortable】-Light body, silicone handle, comfortable to hold.Charging method:1. When the battery is low, the three mode indicators flash green, prompting you to charge the device.2. Connect the device with a 5V / 1A adapter (not included) with a DC charging cable, then turn on the power.3. During the charging process, the three-mode indicator lights flash green and turn off automatically when fully charged.Package Included:1 x Host1 x Needle cleaning head1 x Hook cleaning head1 x Flat cleaning head1 x DC charging cable1 x Instruction