1. Efficient and time-saving: Compared to the classic "rasp", the electric callus remover is very gentle, leaving your feet super soft and effortlessly removing calluses, cracked skin and rough spots.2. Lighting design: The lighting design automatically turns on when the machine is turned on, even in the case of insufficient light, it can be seen at a glance, see more clearly, and the dead skin is not missed.3. Power supply: Rechargeable design, no battery required, you can use a computer or a power bank to charge the tool without changing the battery.4. 2 Roller heads: 2 Pcs roller heads are included: one for smoothing (coarse) and one for buffing (fine), so you can adjust to the individual needs of your foot.5. Adjustable speed: With 2-speed settings, you can further adjust and experience true salon-quality results in the comfort of your home.