Built-In VacuumThis electric foot callus remover with a dander vacuum can remove the most callous dust for clean air and floor, no need to worry about flying dander when grinding feet. The dust collection tank and grinding head of the electric foot callus remover can be disassembled for cleaning. (Note: 95% percent absorption rate, there will still be some scurf fall to the ground) Upgrade 3 Speeds and 3 Quartz Grind WheelsElectric callus remover for feet includes 1600rpm low speed for soft care, 1700rpm medium speed for rough dead skin, 1800rpm high speed for removing stubborn thick callues and dead skin. Electric foot file have 3 different quartz grinding heads(rough, medium and fine) to meet different skin use, high-density quartz sand material, durable. New Upgrade Ergonomic Design Electric Foot Callus RemoverThe arc shape grinding head of the electric foot callus remover can touch 98% skin area, it's more efficient to remove the dead skin. 360 degrees horizontal rotation, safe without hurting the skin, evenly polished. The portable handle design of the electric callus remover for feet avoids the pressure when the body is bent, and the operation is simple and comfortable. Fast Rechargeable & Long Battery LifeThe electric callus remover for feet built-in high quality 1800mAh A large capacity lithium battery can work for about 90 Minutes. Only charges about 1.5-2 Hours. Included USB charging cable, the dead skin remover for feet can easy charging, Portable, Lightweight, eco-friendly, electric foot grinder is perfect for on-to-go or travel. Safety Technology and Easy to UseThis Professional pedicure tools with advanced pressure sensitive technology. When the pressure level is excessive, the electric foot grinder stops automatically. No more worries about skin cuts, irritation, and pain. It is the ultimate pedicure tools to follow the usual foot care routine and for a great foot spa at home. Gift for someone you love.