1. High-capacity battery.
 2. Waterproof design. 
 3. Rechargeable, compact, lightweight and easy-to-carry design.
 4. 1500mah high-capacity lithium battery and USB charging.
 5. Change different file heads in different positions according to dead skin and calluses.
 6. The file heads can be easily removed and cleaned to prevent dirt and dead skin from getting into the machine.
 7. Ergonomic handle makes it easier to reach every part of the foot, comfortable to hold and easy to use.
 8. Low and high level settings can be easily switched.