Features: Ergonomic Design of Electric Foot File:With a built-in rechargeable battery, the foot files for hard skin has 40% more capacity than other batteries, lasts up to 90 minutes and supports both corded and cordless. In addition, the battery LCD display helps you easily know how much battery is left and when to charge the hard skin remover foot. Effective Skincare Feet Hard Skin Remover:Compared to other dry skin remover feet, This hard skin remover foot comes with a dust and chip removal function that absorbs 99% of the dander, giving you a whole new cleaning experience. Also, This dead skin remover has 3 types of rollers to suit your different needs. Specification: Product color: white/black Voltage: USB charging DC5V can use car charger, computer USB Power: 3w Charging time: about 2 hours Motor speed: about 13500RPM Machine speed: fast gear about 2200RPM, slow gear about 1700RPM Single machine size: 165*76*50mm Packages Included: 1 x Electric cocoon remover 3 x Interchangeable grinding heads 1 x Cocoon Removal Knife 1 x Nail file 1 x V-shaped pressure bar 1 x Foot file 1 x Cocoon removal forceps 1 x Stratum corneum remover 1 x Corn Knife 1 x Nail brush 1 x Silicone blade 3 x Replaceable blades 1 x USB data cable 1 x User Manual | SPETLEK Unisex Electric Foot File Waterproof Hard Skin Remover Feet Pedicure Set in Black