Advanced Electric Foot File with LED Display: This rechargeable foot files for hard skin is equipped with an LED display to show battery levels. With a robust 1200mAh lithium battery, enjoy 1 to 2 hours of operation on a quick charge. USB cable included for easy charging via laptop, power bank, or other USB adaptors. Three Specialized Roller Heads: Tailored for various skin care needs - fine roller for delicate skin and minor calluses, regular roller for normal skin maintenance, and coarse roller for tough calluses. The electric foot file rollers spin at 28-33 times per second in a 300-degree wide angle for effective and gentle skin removal. Built-In LED Light & Comfort Design: Engineered for comfort and precision, the ergonomic design fits naturally in your hands with minimal noise and vibration. A built-in LED light enhances visibility for those hard-to-reach areas, making this electric foot file hard skin remover perfect for both men and women. Waterproof and Easy to Clean: IPX7 waterproof rating allows safe use in the shower. The callus remover for feet can be easily detached and rinsed under running water, preventing bacteria build-up and ensuring hygienic use. For optimal results, dry feet before use. Ideal for both travel and home use. Guaranteed Satisfaction: The electric foot file comes with three durable quartz sand grinding heads, ensuring longevity and effectiveness. We are committed to your satisfaction and will promptly address any issues with the product.