Specification:Item Type: Electric Nail Drill MachineMaterial: MetalBattery Type: Lithium Battery (Included)Battery Capacity: 4000mahSpeed: 0-35000RPMHow To Use:1. Power display: the power display on the startup panel, and the power grid flashes red, indicating that the power has been used up and needs to be charged in time. Full battery indicates that the battery is fully charged. 2. Start up: Press the power button for 1 second to start up. Power off: Press the power button for 1 second to power off. 3. The machine is turned forward by default when it is started, and the F state is displayed. 4. Switch CW and CCW rotation: tap the top of the knob to switch CW and CCW rotation, F stands for forward and R stands for reverse. At the same time, the knob is also to adjust the speed, clockwise to speed up, counterclockwise to slow down. 5. The back clip is equipped with a belt clip for convenient operation during manicure. When no clip on is needed, open the clip on with the screw, and the table top can be placed smoothly for use to meet different requirements. 6. Rotate the handle to the left to unlock, insert the grinding head to be replaced vertically, and rotate it to the right to lock it.Package List:1 x Host1 x Polishing Pen6 x Polishing Heads6 x Sanding Rings1 x Storage Box1 x Base1 x Manual1 x USB Cable1 x Screwdriver