Friendly Design A set of buttons is easy for everyone to use. The ergonomic, non-slip handle ensures a comfortable and secure grip in wet and dry conditions. Powerful and safe 2-speed adjustable electric foot callus remover with 2 speeds: 1700x/min at low speed and 2000x/min at high speed. If you get too stressed, it will automatically stop working to avoid harming healthy skin. IPX7 waterproof electric foot rail has a waterproof design, the whole body can be washed under running water. It can be washed and kept clean after use. Wet and dry use, the electric foot scraper effectively solves the problem of bacterial growth in the crevices and protects the health of your feet. Replacing Grinding Heads The Foot Callus Remover has 3 different quartz sanding heads, the coarse grinding head can remove stubborn dead skin, the medium grinding head can remove rough and dead skin, and the fine grinding head is used for daily care. According to the skin, you can choose the appropriate grinding head for care, so that your feet can restore delicate and smooth skin. Quick and easy charging without changing batteries. Just use the included USB charging cable to charge the wireless power footsteps until fully charged. You can see how much power is left and when it needs to be charged. Simple and intuitive, dont worry about power outages