In an age of unlimited portability, with an advanced radio soldering iron, welding is more convenient. Function: Fast heating and cooling This mini soldering iron uses a 5V DC power and uses the special internal heating type soldering head, heating quickly and concentration. Heats up in less than 15 seconds, cools down in less than 35 seconds, which can greatly improve your work efficiency. Convenient This soldering iron is small and light, it is convenient to put in your tool bag and take with you to your workplace. USB cable, which can be powered by computer, mobile power or your mobile phone charger and so on. Safe auto-sleep function When it does not work for more than 25 seconds, the indicator light will turn off and automatically enter standby mode. This function can better extend the service life of the welding head and save power, and it is safer. Widely Used This USB soldering iron can be widely used for circuits of small gauges, appliance accessories, welding, jewelry repair, DIY lovers and so on. Convenient and practical, it is a perfect gift for your friends who need it. Description: Simple and convenient to use, wireless design, safe to use, reasonable size, suitable for both home use and take it out. Two-way adjustment of the tension knob, the temperature of the soldering iron can be adjusted. There is a knob at the bottom to adjust the voltage, the adjustable range is 3.3V-4.8V. A soldering iron interface can be connected to a soldering iron and a charge. Copper alloy soldering iron, fast heat transfer, fast temperature rise. Power has a prompt light, press power , the indicator light is on. During use, the button light flashes to indicate that the battery is low. Need to load. Specification: Material: Alloy Color: silver, red, blue, black Size: About 4*15*25cm Powered by: Rechargeable battery (built-in) Power: DC5V 8W Package includes: 1pc x Soldering iron 1pc x USB cable 1pc x bracket Free: 1PC X Stand