You can be sure of a safe brushing experience:our sonic technology is suitable for use with braces,fillings,crowns,and veneers,and helps prevent cavities and improve gum health.It can remove pigmentation on teeth,remove stubborn tartar,double clean teeth,and protect gums.Product name:Children's electric toothbrushFunction:CleanHeight:23.5cm/9.2"Size:2.3cmx22.3cm/0.9"x8.7"Charging method:usb chargingWaterproof grade:IPX7 gradeVoltage/Current:5V/1ABrush handle material:plasticUsage:ElectricApplicable age:3-12 years oldApplicable objects:children,babiesContains:contains:Toothbrush x1USB cable x1(without adapter)Number of replacement toothbrush heads x1Made of high-quality materials,long-term useThank you for purchasing my product.I hope to bring you good luck.If you have any questions,I will give you feedback as soon as possible.