[New design] The curved grinding head can touch 98% of the skin area, effectively removing dead skin. The principle of the portable handle design is to avoid the pressure when the body is bent. We hope that all customers can relax while trying the corpus callosum.[Built-in vacuum cleaner] The secret to the amazing success of this callus remover is the vacuum cleaner with dermo-vac technology that can quickly suck away dead skin, cells, dirt and hardened calluses in the form of fine powder, allowing you to easily pedicure anytime, anywhere. So, forget that all your time is spent looking at the pile of dander piled up on the carpet, you know you have to pick it up with your hands.[Quartz grinding wheel] This foot grinder has 3 different quartz grinding heads. The rough grinding head can remove stubborn dead skin, the middle grinding head can remove rough dead skin, and the fine grinding head can be used for daily care. You can choose a suitable grinding head for care according to your skin type, so that your feet can restore delicate and smooth skin.[Powerful charging] The powerful exfoliating grinding head rotates at a speed of more than 2500 revolutions, and it can easily remove calluses and rough skin in a few seconds. The powerful head combined with rechargeable batteries and vacuum to eliminate chaos makes it the perfect choice on the go Built-in 2000mah high-capacity lithium battery, using USB cable, can be charged in car laptops, mobile power sources, etc., the charging time is 2-4 hours, and it can run continuously for about 120 minutes.