Feature:1. 40000rpm and Portable: Adjustable 040000rpm, you can adjust according to your own needs, compact size, does not take up space, easy to carry and operate.2. Function: Electric nail drill machine is used for grinding, polishing, unloading, removing dead skin, engraving arc, etc. It is used for various manicures and nail beauty use.3. Forward Reverse Rotation Adjustable: This machine can be forward and reverse rotation direction adjusted, can switch the direction according to the operation, you can easily use the left and right hand to polish your nails.4. HD Digital Display: Retractable charging cable, adjustable, high definition digital display, clearly display data, convenient to see the speed, rotation, etc.5. With 6 Grinding Heads: Portable sanding pen, rotary lock handle, equipped with 6 sanding heads, free to replace sanding heads.Specification:Item Type: Electric Manicure Drill MachineMaterial: ABSPower: 80WSpeed: 40000rpmVoltage: 100-240VBattery Type: Lithium Ion Battery (Built in)Battery Capacity: 2600mAhFunction: Grinding, polishing, unloading, removing dead skin, engraving arc, etc. It is used for various manicures and nail beauty use.Package List:1 x Host1 x Grinding Pen 6 x Grinding Head 6 x Sand Rings1 x Pen Holder 1 x Plug 1 x Manual Note:1. To change the steering, first adjust the speed to 0, the machine needs 2 seconds to buffer when switching2. Please use the original charger of this machine to avoid burning out the movement3. Do not use the grinder while charging to avoid burning out the movement