Portable E-file is an all-in-one nail maintenance device that allows you to join our salon-quality nail club and do your own manicures, saving your time and money. Functional, versatile, and easy-to-use, it can be used for manicure, pedicure, acrylic, gel, dead skin, callus, and cuticle. It's an essential tool for nail-care veterans and newcomers alike. DIY your nail art at home! TECHNOLOGY SPECFICATION Power controller section 1. Input: DC 5V 2A 2. Output: DC 12V 1A Nail drill machine(motor) part 1. Rated voltage: DC 12V 2. Rated current: 140mA 3. No-load speed: 18000-20000 RPM 4. Load speed: 16000-17500 RPM PRECAUTION 1. When the nail drill machine is rotating, do not attempt to pull out the grinding bits on the machine. This operation must be performed under shutdown. 2. When not in use for a long time, unplug the power cord from the power outlet. 3. Do not operate the unit near water and moisture. 4. Use only a dry cloth for cleaning. 5. Do not install in a heater, radiator, stove or heat source such as a heat sink(including a loudspeaker). 6. Do not install in places subject to strong vibrations, dust, smoke, or chemicals, or harmful gases. USAGE OPERATION After use, please pull out the grinding bits from the nail drill machine to avoid premature loss of elasticity of the clamping device. The speed of the nail drill machine is controlled within the range suitable for operation. Keep the product clean. Multifunction,Besides manicures Multifunction,Besides manicures and pedicures,can be used on small leather goods,wood and wall carving,punching and sanding. Easy to operate, you can share more nail art creation fun with your friends or family.Easy to use dialing speed control and change bit, Forward and reverse operation switch. With Adjustable speed up to 16,000rpm, make it easy to use, safe and non-injured hand, Shape and gently clean away uncomfortable hard skins, corns and hard glue. Can be used for natural as well as artificial nails, for grinding, cutting, carving, polishing for all kinds of nail art. Powerful Function: Professional high-tech speed bearing and motor make the electric file low heat, low noise, and low vibration. Portable Compact Design: This nail drill machine made of high-quality metal, tiny and lightweight design, easy to handle and carry it anywhere.