Plug & Play Portable USB Electric Nail File: just plug to any USB power pack.
Light weight but powerful: 15,000 RPM. Input: 5V/2A
Easy to adjust 3 modes of speed + reverse and forward mode: for your convenience and preference.
Memory function: remembers the speed which finished last time, allow you to continue doing your disrupted work.
Cable length: 57
Package includes: 6x multi purpose drill bits, 1x Handpiece with USB Speed Controller