Features Fast Heating and Cooling This mini soldering iron adopts a 5V DC power supply and uses the special internal heat type soldering head, heat fast, and concentration. Heating up in less than 15 seconds, Cooling down in less than 35 seconds, which can greatly improve your work efficiency. Convenient This soldering iron is small and lightweight, it is convenient to put in your tool bag and take to your working place. USB cable, which can be powered by computer, mobile power supply or your mobile phone charger and so on. Safe Auto-Sleep Function When it is not working for more than 25 seconds, the indicator light will turn off and enter standby mode automatically. This function can better prolong 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 gauge, 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: Easy and convenient to operate, wireless design, safe to use, reasonable size, suitable for both home use and take it out. Two-way adjustment of the voltage 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 with a soldering iron and a charging. Copper alloy soldering iron, fast heat transfer, rapid temperature rise. The power button has a prompt light, press the power button, the indicator light is on. During use, the button light flashes indicate the battery is low. Need to charge. Specification Material: Alloy Color: silver, red, blue, black Size: About 4*15*25cm Powered by: Rechargeable Battery(built-in) Power: DC5V 8W Tips: Please allow 1-3cm error of measurement. Photo color might be a little different from the actual product due to color display of different monitors. Product Includes: 1pc x Soldering Iron 1pc x USB Cable 1pc x Bracket Complimentary: 1PC X Stand