The built-in vacuum cleaner can suck out debris and powdery debris. The two gears are used alternately. Using the head at a speed of 1500 revolutions can remove calluses.The power of 2000 rpm can easily remove dead skin and hard calluses and brighten skin tone. (Wet feet or body scrubs are better) Rechargeable battery, 40 minutes charging time can be used for 1 hour, equipped with USB data cable, easy to use anytime, anywhere.Ergonomic design, good use feel, and better use experience. The package contains: callus remover with cover*1, USB charging cable, sponge filter, polishing pad*2, emery pad*2