Overview: 1. New Version - Based on advanced bass cleaning tech, a patented U-shaped brush head cleans each tooth 360 degrees. 2. 4 Optional Modes - This ultrasonic toothbrush has 4 modes, including 3 vibration brushing modes to help you clean your teeth quickly. Specification: Colour: white/black/pink/blue Material : silicon+ABS Shape: U-type Angle: 360 degrees Box size: 20.6x11.1x5cm HOW TO USE: 1. After a full charge, install a U-shaped brush head. 2. Shake the liquid toothpaste out of the foam and evenly apply it to the U-shaped brush head. 3. Put the brush head into your mouth, relax the bite U-shaped brush head, and select the right frequency mode. 4. Easily touch your teeth, and shake your brush back and forth with your hands at the same time, then brush your tooth cleaner. 5. After brushing your teeth, use a wet cloth to clean up the water and stagnation of the fuselage, and try to avoid soaking in water. 6. Please read the instruction carefully.