Efficient Pedicure Tools:The micro-abrasion head rotates at 1600-1700 rpm for high power and maximum comfort. It can instantly remove dry, dead skin and uncomfortable calluses from heels, soles, toes, and hands. Dust-Free DesignOur electric foot file is motorized with Built-in vacuum and it can absorb 98% dust when you rub your feet.tart with one click, easily remove thick skin, dead skin, cracks, hard skin, dry skin, calluses and other foot problems.Foot file can offer you a better foot care experience. USB Rechargeable BatteryBuilt-in high quality rechargeable lithium battery , the USB charging time for 40 mins, can be use about 50 mins; When the product is received, the power is only about 40%. It takes 4 hours to charge before the first use. Secondly, the indicator light is red when the foot grinder is charging. Please do not use the foot sharpener during charging. Finally, the charging is completed, you can continue to use it after unplugging the data cable. Meets Various NeedsOur rechargeable callus remover are suitable for most of people as it come with 3 different Roller Heads (precision, fine, rough grinding head)&Double gear speed control . 1600x/min low speed for delicate skin and high speed for hard skin, one Button operation to choose the speed you need!With different speeds, you can clean up all the dead skin that bothers you. Special GiftPerfect Portable Foot Electric Vacuum Adsorption Foot Grinder. You save money over time because there are no batteries to replace. Take it in the car for sandal-ready feet at the beach or to the office to touch up cracked heels in between meetings. Perfect for letting your feet softer and more sexy at home, at the office. A special gift for your family and friends.Specifications:Color: As shownMaterial: ABSUsing Time: 50 MinutesBattery Capacity: 500mAhCharging Voltage: DC 5.0VCharging Current: 2ARated Voltage: 3.7VLow Gear Speed: About 1600 rpmHigh Gear Speed: About 1700 rpmRated Power: 2.5W Package Include: With Original Retail Box1 x Electric Foot File1 x Coarse Grinder Head1 x Fine Grinder Head1 x Polishing Grinder Head1x Sponge ring1 x USB Cable1x Manual1 x Brush