Convenient USB Soldering Iron USB Cable Burning Pen LED Display Screen Three Archives Adjustable Voltage 510 Connector Features: Temperature Control efficient: easily adjust the temperature of your soldering iron kit with voltage control of three speeds, consummate for a variety of item. Efficient heating is achieved with a 2.7 V, 3.7 V and 4.2 V, while the battery of 650mAh allows fast heating Design of LED screen: with a system of intelligent temperature control, LED display, status updates from the battery and safe use, our soldering iron kit ensures an efficient management of heat for their item are consummate Multi-function connector: Work with a variety of 510 accessories threaded, ideal for welding of electronic components or artisanal production; the multi-function connector 510 ensures versatile use Efficient charge: Recharge your soldering iron effortlessly in any time and any place using the convenient USB port-C, ensuring that your tasks are fed. You' love it Precision Control: Get consummate results with this kit welder that weighs merely 1.16 ounce. Its design in the form of a ball point pen makes it easy and comfortable to handle, transport and use, both for item at home as well as for repair work technical, providing precision control and efficiency portable Product Description: Includes: 1x soldering iron, 1x Hotline head, and 1x USB charging cable.