Complete soldering iron set: the soldering iron set contains a soldering iron, soldering wire, soldering paste, holder with cleaning sponge, 3 soldering tips, type C charging cable and instructions (English language not guaranteed). This soldering iron set meets all your soldering requirements. The soldering iron sponge effortlessly removes stains from the soldering iron tips and extends their service life. Wireless soldering iron set: the USB soldering iron set has a built-in 800 mAh battery, which is free of cables and makes control more free and convenient. It has a USB port for charging via battery, computer and mobile phone. Equipped with a Type C charging port, it takes about 2 hours for the battery to be fully charged, and it can be used continuously for about 30 minutes after charging. Easy to use: the soldering iron can be switched on and off with a long press of 5 seconds, and the temperature can be adjusted with a short pressure. The heat insulation on the surface prevents you from burning your hands when working. TPE handle is comfortable and non-slip. It is also very easy to change the soldering iron, you can refer to the fourth picture of the product. Temperature adjustable: there are 3 temperature options for the soldering iron, when the indicator light is at 1, the temperature is approx. 300-340C; when the indicator light is set to 2, the temperature range is approx. 360-400 C; and when the indicator light is at 3, it is the highest temperature, which is approx. 420-450C. Warm tip: the soldering iron automatically turns off after 10 minutes of continuous work to ensure the safety of use. Other applications: the soldering iron kit is widely used for soldering circuit boards, repairs of household appliances, DIY work, jewellery, guitars, watches, wiring, mobile devices, computer hardware, small electronics, TV capacitors or accessories. Note: The wireless soldering iron is not suitable for large projects.