Safe, Easy& Effective: The pedicure kit effectively removes calluses and cracked heels without causing skin irritation, skin wounds, or painful callus removal. Quick outcomes, comfortable and easy to use, built to last, and safe! IPX7 Whole Body Waterproof: Using a revolutionary waterproof technology inside the fuselage, the foot scrubber has IPX7 waterproof grade, allowing you to take off the roller head and rinse the fuselage in water without having to worry about water harming the equipment. Fast Charging & Long-lasting Use: The foot file powered by 1200mAh lithium batteries has a working time of up to 120 minutes. Charge for about 2 hours. Charge once, utilize a number of times. Digital display allows you to check how much remaining power there is. Using the included USB charging cord, it is simple to charge the foot exfoliator tool using a socket, laptop, power band, or car charger. 2 Speeds Adjustable: Electric foot callus remover has 2 speeds, 1900RPM and 2200RPM. For everyday maintenance or skin with fewer calluses, low speed is ideal. For feet with thick calluses, high speed is ideal. By touching the touch button, speed switching is finished.