Upgraded Battery and Motor: Our factory has upgraded the battery and motor, which can last longer and more stable, If you have any problems with the product, please contact us immediately, we will give you a satisfactory reply.Electric nail drill is suitable for most nail polishing heads,it is convenient to unload about 3 minutes. it is multi-functional for easily grinding, polishing, removing gel polish and cuticles for both acrylic nails and natural nails. Rechargeable and Cordless: Nail polishing pen built in Rechargeable lithium battery, Being fully charged for about 1-2 hours, the electric nail file will work up to 1-2 hours. 3 Levels Of Battery Display, You can see how much battery left and when to charge. It can work while charging by power bank and usb adapter. 3 Speeds and Overload Protector: 3 levels of speed display and 4 overload protector display, if used much strength, the device will stop to work.It makes this electric nail file easier and safer to smooth your nails. Portable & Compact Design: Professional high-tech speed bearing and motor, It makes the electric file low heat, low noise, and low vibration. This Nail drill machine made of high-quality metal, tiny and lightweight design, easy to handle and carry it anywhere.It is compact enough to pack into your traveling bag or case. Professional Nail Drill Set: Comes with 1pc hight quality 3/32ceramic nail drill, 6pcs different shank drill bits and 6Pcs sanding bands.It is professional for both home, salon, and school use.LED display There have LED display, so that you know the speed and when you need to charge it. Overload Protector There have overload protector, if used much strength, the device will stop to work.It is very safe. Universal Accessories It use typ-c charger usb cable and 3/32 drill bits, these accessories is universal, we can get them easy and cheap. Low Noise Good quality motor makes the electric file low noise. Low Heat The good quality motor makes the electric file low heat. Easy to Carry This nail drill is tiny and lightweight , just 53g, and it built in Rechargeable lithium battery, so it can work without charge cable.