Intuitive energy indicator The built in digital display shows the callus remover working status and battery level. Real time feedback on a definition screen allows precise control during foot exfoliation. Dual speed settings Two speeds provide flexible foot care. The low speed gently removes thin dead skin, while the speed power mode tackles thick calluses efficiently. USB rechargeable with 1500mAh battery USB charging allows quick energy replenishment. The 1500mAh battery provides long lasting performance, reducing how often you need to recharge. Skin friendly grinding head A fine grinding head is designed for gentle yet thorough dead skin removal, delivering a comfortable pedicure experience. Use scenarios After a shower or bath at home for routine foot maintenance. Before a special event to smooth feet and heels for sandal or open toe footwear. While traveling to keep feet smooth on the go.