Use at home and outdoors. Steps to perfect pedicure:1. Soak your feet in warm water for 10 minutes. Then wipe it with a dry cloth.2. Turn on the electric callus remover, and then gently slide on the callus feet to achieve the desired effect.3. Clean your feet and apply some cream to moisturize your feet and enjoy soft and smooth skin!Specification:Product color: whiteVoltage: USB DC5VPower: 5WCharging time: 3.5 hoursBattery type: Lithium battery 1200mAhWaterproof rating: IPX4notes:Due to different displays and lighting effects, the actual color of the product may be slightly different from the color shown on the picture. Thanks!Due to manual measurement, please allow a measurement deviation of 1-3mm.1 X foot grinder1 X fine sand grinding head1 X coarse grinding head1 X Dust cover1 X USB charging cable1 X cleaning brush1 X Manual