1. Tighten the tip of the soldering iron, quickly press 5 times within 2 seconds to open machine.2. Long press the button to make the soldering iron work. Release it to stop working.3. Long press the button for more than 10 seconds, the battery is activated. Timeout protection function. It is recommended to hold down for 7-8 seconds, then release and press. Again (perform this operation cyclically to achieve continuous heating)4. Need to close and press 5 times quickly. Long-term storage should be fully charged.Interface: 510 interfaceSoldering iron tip: pointed tipcolour:SilverMaterial:MetalPackage Contents:1 x host1 x soldering iron stand1 x welding wire1 x usb lineOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.