Studies have shown that brushing teeth cannot thoroughly clean the mouth in all directions; for some toothbrushes that are difficult to clean, the dental punch is undoubtedly the first choice, and the mouth has no peculiar smell and cares for periodontal health. This product is designed for factors such as quick and convenient nozzle replacement, immediate charging mode, man-machine experience, etc. One-key press pop-up-nozzle replacement, comfortable grip and use. Studies show that brushing your teeth doesn't clean your mouth completely; Some toothbrush is difficult to clean the position, the teeth are no doubt the first choice, no bad breath, care periodontal health. This product is designed for quick and convenient nozzle replacement, instant charging mode, man-machine experience and other factors. One-bu-tton press and eject -- replace the nozzle for comfortable holding and use.