1: Screw on the tip of the soldering iron and press 5 times within 2 seconds to turn on the machine. Shut down, press 5 times in quick succession to shut down (the indicator light flashes several times)2: Long press the power button to let the soldering iron work. Release it to stop working.3: Long press the power button for more than 10 seconds, the battery will start the timeout protection function. It is recommended to hold down for 7-8 seconds, then release and press again (cycle this operation to achieve continuous heating)Specification: 5V 15WColour:blueMaterial:MetalPackage Contents:1 x electric soldering iron1 x sponge1 x bracket1 x usb cableOnly the above package content, other products are not included.Note: Light reflection 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.