Efficient & time-saving: Compared to the classic "rasp", the electric callus remover is very gentle, makes your feet super soft and silky smooth without rough spots for a few days. .Say goodbye to AA batteries: The callus remover is a USB rechargeable handheld device, equipped with a high-capacity lithium battery, with power display functions. .Meet your daily foot care needs: Coarse grinding to remove hard calluses, medium grinding to remove coarse dead skin and fine grinding for daily care. Recommended for everyone who loves well-groomed feet. .Convenient 2 speeds: Choose according to skin condition (recommendation to start at low speed). Working effectively with podiatry and pedicures, an easy way to take care of your feet at home instead of going to a podiatry salon. .Exclusive foot care gift: Our electric callus remover can be used either in the bathroom, a professional gift to help you, your family and friends have beautiful feet. A notice: The charging port is not waterproof. .