Feature: 1. It Adopts Vacuum Cleaning System And High‑Speed Centrifugal Rotating Dust Collection. 2. Its Head Can Be Detached And Cleaned To Better Keep The Body Hygienic. 3. The Details Of This Product Is Trictly Controlled To Help You Polish Your Skin Comfortably. 4. 1.5H Fast Charge, 50Min Long Battery Life, Strong Power, And More Comfortable To Use. 5. The Speed Can Be Adjusted In Two Gears, Which Is Suitable For Different Users. Specification: Condition:100% Brand New Item Type: Electric Foot Grinder Charging Time: Dc 5V Charging Current: 2A Rated Voltage: 3.7V Rated Power: 2.5W Use Time: 50Min Size: Approx. 10.5 X 6.6 X 5.4Mm/0.4 X 0.3 X 0.2In Low Level Speed: About 1600 Rpm High Level Speed: About 1700 Rpm Product Features: Safe Foot Protection, Long‑Lasting Battery Life, Usb Charging, Exfoliating Calluses, Automatic Absorption Of Dander, Adjustable Speed. Package List: 1 X Host (With 1 Dark Sanding Head) 1 X Gray Sanding Head 1 X Blue Sanding Head 1 X Filter Sponge Clamp Circle 1 X Usb Charging Cable 1 X Manual 1 X Cleaning Brush Note: 1. Completely Soak Your To Soften The Keratin: Soak Your Feet In Warm Water For About 10 Minutes. If The Calluses Are Thick, Use 2-3 Spoons Of White Vinegar + Hot Water To Soak Your Feet. Keep Your Feet Dry Before Using. 2. Exfoliation Should Not Be Too Frequent: Use 1-2 Times A Week. It Is Not Recommended To Polish All Dead Skin Calluses At Once. 3. Please Completely Charge It For The First Use. 4. The Body Is Not Waterproof And Cannot Be Washed