Instructions for use 1: Tighten the tip of the soldering iron, quickly press 5 times within 2 seconds to open machine. 2: Long press the power button to make the soldering iron work. Release it to stop working. 3: Long press the power 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 . Interface: 510 interface Soldering iron tip: knife Colour:silver Material:Metal Package Contents: 1 x host 1 x soldering iron tip 1 x soldering iron stand 1 x sponge 1 x usb line Only 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.