Note: Shipped with Built in Battery specification: Item Type: Electric Foot Grinder_x000D_Product Material: EVA, Quartz Sand_x000D_Product Size: Approx. 5.8 x 6.6 x 9.6cm / 2.3 x 2.6 x 3.8in_x000D_Gears: 2 Levels, 1 Level 2000 Rpm, 2 Levels 2500 Rpm_x000D_Built in Battery Specification: Li Ion Battery, 1200mAh Features: 12 Speeds: The electric foot grinder can switch between two speeds at the touch of a button. 2500RPM high speed for deep cleaning, 2000RPM low speed for soft care. 2360 Degree Rotation: The electric foot callus remover rotates 360 degrees to automatically remove dead skin and calluses from your heels in minutes. 3Convenient and Washable: Fine grinding head for daily care, Coarse grinding head for removing hard and rough dead skin (one of the grinding heads is attached to the machine), which are both washable and easy to clean. 4EVA Material: The electric foot callus remover is made of EVA and quartz sand, which is wear resistant and durable. 5Cordless Design: The foot file electric built in vacuum cleaner, which can be used for 60 minutes with only about 3 hours of charging. Cordless and lightweight design for travel. PackageList: 1 xElectric Foot Grinder 1 x Dustproof Cover 1 x Replacement Grinding Head 1 x Brush 1 x Charging Cable