Specification:Item Type: Electric Manicure KitMaterial: ABS+siliconeProduct Power: 5WBattery Type: Built in lithium battery (included)Battery Capacity: 400mAhHow to Use:1. Manicure is carried out with the grinding head driven by the high speed operation of the machine. Only one of the heads is inserted into the machine when used.2. When trimming, grind your nails slowly close to the high speed grinding wheel to get the shape you want without worrying about the flying of nail fragments or the irregularity of manicured nails. Polished nails are more rounded and naturally without burr than nail clippers3. The host button is pressed the first time to start one gear, the second time to start second gear, the third time to start third gear, the fourth time the host shut down.Package List:1 x Nail Drill Machine6 x Drill Heads16 x Sanding Bands2 x Spare Plastic Heads1 x USB Cable 1 x Instruction