Note: This machine has a waterproof function. After grinding, the head can be washed separately, or the whole machine can be rinsed under the tap (prolonged soaking in water is prohibited). specification: _x000D_Item Type: Electric Foot Callus Remover_x000D_Material: ABS_x000D_Battery Type: Built-In Lithium Battery 1200mAh_x000D__x000D_Instructions for Use:_x000D_Press the switch, the green light I is the 1st low-speed gear, select II as 2nd high gear, and the speed is selected according to your own needs. Features: 12 gears speed regulation, select the speed according to your own needs, simple operation, convenient for use. 2USB charging port, red light shows when charging, green light is always on when fully charged. 3Equipped with three different quartz sand grinding heads, coarse, medium and fine, easy to replace. 4Strong power, effectively remove dead skin and calluses, won't hurt skin, important foot care tool. 5Streamlined machine body, easy to hold and use. Dust cover design, protect the grinding head from contamination. PackageList: 1 x Foot Callus Remover 1 x Fine Sand Grinding Head 1 x Medium Sand Grinding Head 1 x USB Cable 1 x Cleaning Brush 1 x Manual