360 VACUUM TECHNOLOGY?Our electric callus for feet can rotate 360 degrees which will effectively help remove cracked, dry, dead skin, hard-to-remove calluses, revealing smooth skin. Built-in vacuum cleaner with a powerful motor and automatic suction chip that makes the pedicure remover pick up and blow away dead skin and dirt produced while in use. POWERFUL FOOT CAL REMOVER Built-in powerful motor for Precise rotation, dead skin remover for feet easily removes calluses and rough skin in seconds with 2000 Rpm of power. The non-slip circle handle responds to arched feet and ensures an easy and effortless pedicure hold. 3 quartz grinding wheels, rough grinding head for hard sanding cocoons, fine grinding head for raised dead skin, callus massage head for thick cocoons accumulated all year round. After use, the heads can be detached and cleaned with a cleaning brush. Unlike traditional pumice stones or manual foot files for hard skin that often cause hurting, quartz pads are easier and safer for grinding. ?USB RECHARGEABLE BATTERY?Built-in 2000mAh large capacity lithium battery, dead skin foot scrubber can be charged by laptop, power bank, and battery charger with provided USB charging cable. Charge once, use multiple times. The premium body is good at dissipating heat effectively, so you don't have to worry about overheating. ?SAFETY PROTECTION DEVICE?Press gently when using the exfoliating foot. Equipped with advanced pressure-sensitive technology, the foot dead skin scraper will automatically stop working when given excessive force, to avoid skin injury. The lightweight and portable design makes the foot polisher easy to carry for travel, travel, hiking, travel.