specification: Item Type: Electric Foot Callus Remover_x000D_Battery Specifications: Model 18650_x000D_Battery Capacity: 1800mAh(Built in) Features: 1Security Spats: This product only scrapes dead skin and calluses without scraping the flesh. The round design is more suitable for the skin of the feet, and it is comfortable to polish without damaging the skin. 2Clean and hygienic: While grinding feet, sucking dander, using a vacuum system, high speed centrifugal rotation to vacuum, automatically adsorbing foot dander powder, without worrying about foot dander flying when grinding feet. 3Surging Power: This product integrates the powerful 1800mAh large capacity lithium battery into the body, bringing a pleasant experience continuously. 4Personalized Configuration: This electric foot scrubber has 3 speeds and 3 different types of quartz abrasive heads, a coarse grinding head for removing stubborn dead skin, a medium coarse grinding head for removing rough dead skin, and a fine grinding head for daily care. 5Convenient to Enjoy: long press the switch to turn on, click to change gear, equipped with a data cable to charge, enjoy a pleasant experience at home, and let your body relax. PackageList: 1 x Foot Grinder 2 x Replace Grinding Head 1 x Washer 1 x Brush 1 x USB Cable 1 x Instruction