Set 10 in 1: Manicure pedicure set including callus razor, nail file, V-shaped push bar, foot file, callus remover, cuticle remover, corn knife, nail brush. 2 speeds: Two speed modes with safety lock, efficient for use Removing rough skin.Speeds can be freely switched with the power button. 3 replacement roller heads: fine roller head is used for daily foot care. general roller head can treat new dead skin, thick roller head can treat stubborn calluses. Rechargeable Electric Foot Callus Remover: 1200mAh large capacity lithium battery can work for about 120 minutes. Only charge about 2-3 hours. Safe and Easy to Use: With advanced pressure sensitive technology, no more skin cuts, irritation and painful callus removal. 10 IN 1 Electric Pedicure Kit Specification Battery capacity: 1200 mAh Power: 5V Voltage: 5V-1A (USB) Charging time: 2.5 hours (charging time should not exceed 12 hours) Instructions for use Note about charging: Please fully charge the product before using it for the first time Use (display shows battery level of 99). Friendly design A set of buttons is easy for everyone to use. The ergonomically designed non-slip handle ensures a comfortable, secure grip in wet and dry conditions. Durable, practical and waterproof This electric callus remover is waterproof to IPX7.Safe to clean with running water or immerse in water. IPX7 waterproof body without charging hole, seamless waterproof, 360 degrees. Enjoy a perfect pedicure in the shower or bathtub. It is recommended to wipe the water from the feet for a better result.