1. EASY TO INSTALL AND OPERATE: Plug and play, no assembly required, easy to operate. 2. highly : our soldering iron is made of high quality material, very and can be used for a long time. 3. large capacity battery, large capacity, long working use. 4. USB CONNECTION: Simply connect the power cord to the usb port of the soldering iron of your mobile phone or other devices. 5. Meet all your soldering needs. All kinds of electronic and chip boards, soldering, jewellery, guitars, watches, wires, mobile devices, computer hardware, small electronic works for repair use. Safety instructions and warnings: 1. The soldering iron uses 18650 battery, please do not connect positive and negative levels. 2. Do not use the soldering iron on live circuits. 3. Do not allow the machine to enter or be immersed in water. 4. The temperature of the soldering iron will become high during use. 5. As the tip of the soldering iron is very , please keep the tip in case of accidents. 6. Do not approach materials 7. To prevent malfunction, do not use the specified external voltage 8. To prevent the battery from leaking or catching fire, remove the battery when it is not in use for a long time Troubleshooting: 1. When the heating stops after a few seconds of starting the button and the indicator light is off, please replace the battery with a sufficient charge or charge the battery. 2. When the indicator light is on, the welding is not hot, please replace the new welding . 3. Press the indicator light to go out quickly, check whether is short-circuited. Please note:the physical slightly color difference or difference, does not affect the use, please do not mind, thank you! Colour:Black Material:Metal Package Contents: 1 * t 1 * charging cable 1 * solder 1 * C welding 1 * K welding 1 * battery Only 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.