Feature:1. Twospeed adjustment, adjust gear position through button slow and high speed to solve calluses that are difficult to remove on the feet.2. For coarse and fine frosting heads, you can choose your own frosting head for different thickness of stratum corneum.3. Gently press the side button of the microdermabrasion machine to easily replace the scrub head.4. Scrub head can be directly rinsed with clean water or can be removed and rinsed separately to avoid the growth of bacteria.5. Handle is designed according to ergonomics, conforms to design of hand, and is not easy to sore during use.Specification:Item Type: Electric Foot Callus RemoverBattery Capacity: 1500mAh (Shipped with built-in battery)Working Time: 1-2 HoursCharging Voltage: DC 5V1.2ACharging Time: 3-5 HoursCharging Method: USB Data Cable.Package List:1 x Electric Foot Callus Remover1 x White Fine Sanding Head1 x Black Thick Sanding Head1 x Usb Line1 x Manual