Efficient Callus Removal: This electric foot grinder effectively polishes thick skin and calluses, leaving your feet smooth and soft after every use. USB Charging for Convenience: Powered by a USB charging system, this foot grinder offers portability and ease of use, perfect for at-home or on-the-go foot care. Rechargeable Lithium Battery: Equipped with a durable lithium battery, the device ensures long-lasting performance with quick recharges. Low Voltage Safety: Operating at ≤36V, it provides safe, gentle polishing without causing harm to your skin. Ergonomic Design: Designed for comfort, the foot grinder fits comfortably in your hand, allowing easy control and precise care for your feet.