Specifications: 1. Professional brushless motor with powerful performance and wide range of applications: removing nail polish or polishing artwork or carving leather or carving wood or peeling or jade processing or polishing 2.0-40000RPM precise speed adjustment, VA digital display interface, knob operation adjustment, higher grinding efficiency, more stable, more refined. It does not hurt your nails and can be used for carving valuables. 3. Built in 4000mAh polymer battery, thinner and lighter. Up to 32 hours. Powerful, fast charging. 4. The grinder has a 5V or 2A power output interface, which can be used as a mobile power supply to charge mobile phones, tablets and other devices. Emergency power supply in case of emergency. 5. Mobile and portable design, easy to put into pocket and cosmetic bag. You can purchase a storage box for easy storage of accessories. Parameters: Electric nail polish machine Color: black, silver, gray Material: aluminum alloy Rotating speed: 0-40000rpm Steering: clockwiseandcounterclockwise Battery capacity: 4000mAh Charging interface: Type-C Endurance: 25-32 hours Output voltage: 12V or 1A Rated current: 140mA Mobile power output interface: 5V or 2A Condition:100 percent Brand new and high quality Manufacture:China,Chinese Factory Homegrown products for Sale Friendly Tips: Please allow minor error of measurement,due to manual measurement. Due to the different display and different light, the picture may not reflect the actual color of the item. Thanks for your understanding Package Included Host x 1 Handle x 1 Connecting wire x 1 Charging cable x 1 Grinding head suit x 1 Instructions x 1 Note: 1. Please allow minor deviation due to manual measurement. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.