Features 1、Electric nail machine is suitable for most nail polishers and easy to unload, about 3 minutes. Multifunctional, can easily grind, polish and remove gel polish and cuticle of acrylic nails and natural nails 2、Built in rechargeable lithium battery, can be fully charged for about 1‑2 hours, can work for up to 1‑2 hours. 3 level battery display, you can see the remaining battery capacity and when to charge. Can work when charging the power bank and USB adapter 3、With 3 speed displays and 4 overload protection displays, the device will stop working if you use a lot of strength. Make this electric nail file easier and safer to smooth your nails 4、Professional high tech bearings and motors make the electric file low in heat, noise and vibration 5、This nail polisher is made of high quality metal, compact and lightweight, and designed to be easy to operate and carry. Small enough to fit in your travel bag or suitcase Specification Item Type: Electric Nail Drill Kit Model: HRY108 Suitable Grinding Head Handle Diameter: Approx. 3mm / 0.1in Chuck Depth: Approx. 25mm / 1in Speed: 3 Levels(5000-10000-18000RPM) Use Time: The three levels no load running time for more than 1 hour. If you need to use for a long time, you can use while charging Power: 10W Battery Voltage: 4.2V Battery Type: Lithium battery Battery Capacity: 300mAh Charging Time: 80%: 30 minutes, 100%: 60 minutes Package List 1 x Nail Drill 1 x Charging Cable(random color) 1 x Ceramic Grinding Head 1 x Grinding Wheel Package (50pcs) 1 x Accessories Box (6pcs grinding wheels + 6pcs grinding needles) 1 x Hex Wrench(on the nail drill) 1 x User Manual