Fast Electric Callus Remover: Två hastigheter för att snabbt och säkert ta bort död hud och förhårdnader, smärtfritt och praktiskt. USB rechargeable Foot File: Our pedicure foot file can be powered by a battery, 500mAh large-capacity lithium battery is integrated into the body, and after a quick 1.5-hour charge, the battery life is about 50 minutes.Removable Grinding Head: The grinding head can be removed and rinsed immediately after use, which can effectively solve the problem of residual callus and ensure cleanliness.Interchangeable 3 Kinds of Grinding Heads: coarse, fine and polished 3 grinding heads, easy to remove thick calluses on the feet.Built-in Vacuum Cleaning System: It can absorb callus while grinding, the high-quality body is conducive to efficient heat dissipation, no need to worry about overheating.Charging voltage: DC 5.0VCharging current: 2ARated voltage: 3.7VRated power: 2.5WUse time: 50 minutesBattery capacity: 500mAhWeight: about 133gSize: about 10.5 x 6.6 x 5.4cm/4.13 x 2.60 x 2.13in