?Powerful & adjustable speed &direction?0-18000RPM speed, 3 speeds from low to high, you can choose the speed you want according to your needs. Positive and negative directions to experience the difference. ?Rechargeable battery?With a built-in durable battery that takes just 2 hours to fully charge, you can charge it on your computer, power bank, car charger, USB plug charging or any other device with a USB port. ?Low noise & Low vibration &Low heat?This electronic nail file is equipped with shock absorbing bearings, an upgraded high power motor with intelligent heat dissipation to ensure that the file works with low noise, vibration and heat. ?Multifunctional nail drill?6 nail drill bits. The different types of nail drill bits have different uses. They can be used to grind, carve, cut, polish and remove gel nails, acrylic nails, polyester nails, cuticle removal and dead skin, safely and easily without damaging hands and nails. They can be used not only for finger nails but also for toe nails. ?Professional electronic nail file?Measuring 13x2.3x2.3cm and weighing 82g, this nail file is small and easy to carry around and the LED display allows you to see the battery level straight away so you don't have to worry about suddenly running out of power. This nail file comes with a unique storage holder which is also its base and measures 6x3.7x3cm which will help to store all the drill bits nicely.