Detailed Instructions & Warranty?- Comes with a small user guide, everything is indicated on how to use it, even if you are a beginner. If you have questions after receiving the products, please contact us. ?Portable & Easy To Use?- This pencil-shaped electric nail files ensures a comfortable and firm grip. The lightweight design (68g) is compact enough to slip in your purse, perfect for travel and home. Equipped with a USB charging cable. Just plug in the USB cable, and turn on the power to start your nail salon. ?Adjustable Speed & Reverse Direction?- Electric nail drill is designed with 0-20,000RPM, which makes this electric nail file easier and safer to polish your nails (It is recommended that beginners start using the low speed). The double direction of rotation is very practical, ideal for nail masters or beginners to file or sand false nails. Enjoy Professional Nail Care at Home!. ?Low Noise & Low Vibration?- The latest anti-vibration design of the aluminum body effectively reduces vibration, noise, and low temperature for better use. Easily removes varnish painlessly without damaging the nail. Very silent and light, you can use it anywhere without disturbing anyone. ?Upgraded Electric Nail Drill?- Come with 11 different nail drills bits, 26 sanding bands, 1 brush, 1 glass nail files. 5 colors for your choice! These electric nail files can be used for manicures, pedicures, polishing, shaping, grinding cuticles, removing acrylic/gel nails, or for nail beauty. Perfect for both natural and artificial nails and make it easy to treat your nails at home!.