How to Use: Use this product Use steps: 1. Carefully insert the brush head into the swing shaft. There must be a certain gaps between the brush head and the main body to reserve a working space for the brush head to work normally. 2. To prevent toothpaste from splashing, take a small amount of toothpaste on the brush head before use (generally speaking, sonic electric toothbrushes save more toothpaste than manual toothbrushes). 3. Soak the brush head first, put it in the mouth, and then start the toothbrush. 4. Move the toothbrush slowly at 45° among the gum lines. 5. Gently hold the handle of the toothbrush and move it slowly in a circular motion. Do not press too hard. Specification: Item Type: Electric Tooth Brush Material: ABS Product Model: M1 Product Color: Pink and Blue Product Selling Points: Nonslip Handle, IPX7 Waterproof Inbuilt Lithium Battery: 1200mAh (Inbuilt Battery Included) Charging Mode: Type C Product Size: Approx. 17.5 x 3 x 3cm / 6.89 x 1.18 x 1.18in Height: Approx. 17.5cm / 6.89in Base Diameter: Approx. 3cm / 1.18in Package List: 1 x Electric Tooth Brush2 x Brush Head 1 x USB Charging Cable 1 x User Manual