This mini soldering iron uses a special internal heat type soldering head, heats fast and concentration (about 8-12s), helping you get fast melting, making it easy to do your art job and improving your work efficiency. The soldering pen has a built-in 1100mAh battery which can be by the USB cable and can work for a long time. You do not have to change the battery or charge it frequently. The cordless design allows you to annoying wires, so you can use it at any time and anywhere. The size is about 160 x 14mm/6.3 x 0.6 in, small and exquisite, light and easy to carry, and easy and convenient to operate. The soldering iron kit includes 1 x soldering iron, 3 x welding heads, 1 x USB cable, 1 x tin wire, 1 x soldering iron holder, and 3 x heating cores. The soldering iron kit can be used easily for all skill levels, beginners, experienced, or experts. Our multifunctional soldering iron kit can help you make different projects, widely used for welding circuit boards, , repairing computers, mobile phones, electronic equipment, etc., and it is perfect for most universal crafts, hobbies, or home DIY projects. material: metal Color as shown Package Contents: 1 set Soldering Iron Kit Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.