Features : -High Frequency Sound Wave to Remove Stains - A new generation of brushless DC motor, strong power, disintegrate tooth stains, dual-bearing noise reduction technology, lower noise.-Patented Bristle Layout - Mountain-shaped structure + sandwich bristles layout can quickly penetrate into the gingival sulcus.-Double-effect Brush Head Meets Different Needs - Sensitive Type, care for the gums, soft hair imported from Japan Toray, suitable for people who are prone to bleeding when brushing teeth; Clean Type, powerful cleaning, American Du - Pont imported bristles, suitable for people with more stains and and tarta.-Two Kinds of Tooth Cleaning Mode - One-key switching, easy to operate, automatic stop in 2 minutes, the first time you use anelectric toothbrush, it is recommended to use the gentle mode.-Smart Zone Change Reminder - The dental expert divides the oral cavity into 4 areas. The toothbrush shakes once every 30 seconds to remind the area to clean and stop automatically in 2 minutes.-IPX7 Level Full Body Waterproof - Soaked in water for 30 minutes, it can still operate normally, avoiding short circuits and malfunctions caused by water leakage, and is safe and worry-free.-Wireless Induction Charging - Fast charging in 4 hours, charging life for 20 days, overcharge protection mode, automatic power off when fully charged.-Convenient to Carry - It is convenient to carry on business trips and can also be used for daily storage, clean and sanitary. Specifications : BrandDR.BEIModelBET-C01Voltage5VPower2WCleaning Mode2 mode(Standard/Soft)Cleaning Frequency31000 times/minute - Battery Capacity700mAhCharging Time>4h - Waterproof Level - IPX7Porduct Size25 × 25 × 232mm - Product Weight90g - Package Included :1 x Brush Handle1 x Sensitive Type Brush Head1 x Cleaning Type Brush Head1 x Travel Storage Box1 x Charging Base1 x Manual