Features:1.Easy and convenient to operate, wireless design, safe to use, reasonable size, suitable for both home use and take it out.2.Two-way adjustment of the voltage knob, the temperature of the soldering iron can be adjusted.3.There is a knob at the bottom to adjust the voltage, The adjustable range is 3.3V-4.8V.4.A soldering iron interface can be connected with a soldering iron and a charging.5.The mini pen soldering iron is easy to operate and its wireless design is easy to use for home use and carry-on.Notice:Please allow 1-3cm deviation due to manual measurementActual color may be slightly different from the image due to different monitor and light effect:Material: Rubber handlePower Supply: USBincludes:1 set x Wireless Charging Welding Tool