NanoInfusion Drill is a cordless nail drill, which doesn’t require an outlet for power, so you can use it almost anywhere. Being charged for about 2.5 hours, the electric nail file lasts hours operation time . Smart LCD screen will show the RPM and the electricity. You can choose the desired speed when you do your nail art work. High-powered, low heat and low noise nail drill work smoothly with a high and adjustable RPM (0-35000 RPM ) but without vibration. It is an ideal file for both professional use in salon and beginner use at home. This electric nail drill has the F-Forward and R-Reverse buttons to change direction, which enables any right-handed or left-handed use. It may pause 2 seconds to protect motor when changing the options. Portable hook of the body case let you can hang it on your belt, waist, also can be packed into your traveling bag or case. Designed with a high-quality aluminum alloy handpiece and 6 kinds of metal bits (also works with all kinds of 3/32″ shank bits) and 6 sanding bands, it is very comportable for using and works great on both natural and artificial nail for grinding, carving, cutting, polishing. NanoInfusion Group offers a 6-month unlimited warranty from the purchase date. If encounter any problem while using our nail drill, kindly contact us first.