New upgrade USB nail drill for you, aimed to make your nail artwork easy and efficient ! Portable nail drill is an all-in-one nail beauty care tools that allows you to 'bring your beauty salon home' and to do your own manicures and pedicures. 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. Product Information Charging method: USB interface Charging voltage: DC 5V Working voltage: DC 3.7V Rated power: 2W Speed: 9000-15000 RPM Battery capacity: 500mAh Working time: About 90 minutes Package Including 1 Electric Nail Drill 1 Ceramic Bit 1 USB Cable 1 Product Instruction TIPS : Please turn off the power supply when replacing nail drill bits. Please don't rotate to open the nail drill, otherwide the motor will be damaged. Don't change the directions of rotation frequently to avoid damage to the handpiece. Don't repair or disassemble the product by yourself. Prevent the handpiece from overheating, please don't use continuously for more than 20 minutes. Avoid falling from a height because it's a precision instrument.Professional Service Guaranteed Quality: Your satisfaction is our priority, if you have any problem, please kindly contact our first, and we will give you a satisfactory solution immediately. Low Heat Low Noise Low Vibration: High quality aluminum alloy body and high efficiency heat dissipation keep it a low heat. Pretty friendly work environment for the drill user and people around. It is professional for both home and salon use. (Please make sure let the machine rest after 20 minutes continuous use !). Professional Multifunctional Electric Nail Drill Kit: Elegant packaging and comes with 1pcs 3 32" ceramics drill bits. Our electric nail drill works great for nail polishing, filing, and removing, suitable for acrylic nails, gel nails, dip powder, cuticle calluses, natural nails, and toenails. Light Portable Durable: The light weight and compact design is convenient for you to take use it anywhere, anytime. Comes with an upgrade USB interface cord, it's easy for you to use it with any USB socket, such as power bank, laptop, AC adapter, and even your car charger. No more worry about the adapter cord limited, great for beginners, or professional alike. Powerful Adjustable Speed Direction: Easy to operate electric nail drill machine with speed control button can adjust the speed in 9000-15,000 RPM. It makes this electric nail drill can easier and safer to smooth your nails, and work well for all-level nail technicians and newcomers, cutting your time in half.