Kids Electric Toothbrush for Healthy Smile Adopts advanced motor to form 30000 strokes per minute, delivers high-speed vibrations to turn toothpaste into plaque fighting tiny bubbles. High-frequency sound waves in in multiple angles develop dynamic cleaning state for deep cleaning hard-to-reach areas. U-Shaped Head Soft Bristles The U-shaped head is made of rubber cover and Dupont nylon soft bristles. The rubber cover can protect kids delicate tooth from being knocked by brush head. And soft bristles combines U-shaped design can make kids easily brush tooth in all directions without dead angle. 3 Brushing Modes 2 Minutes Timer Clean mode for daily life, Milder mode for beginners, Sensitive mode for sensitive teeth. With timing function, the electric toothbrush can help children form good brushing habits with smart 30 seconds reminder and 2 minutes auto off. Waterproof Rechargeable IPX7 waterproof level, easy to clean, maintains personal hygiene. Built-in 500mAh lithium battery, about 30-40 days long using time in Clean mode, solving outdoor problems. Comes with USB cable for charging. Other Details Squeezing toothpaste into the U-shaped brush head from the top. Non-slip handle, comfortable grasp. Comes with a replaceable brush heads, easy to install.