1.USB portable intelligent charging soldering iron, the soldering iron tip and heating element are integrated design, fast heat conduction, fast heating, three-speed temperature adjustment, the highest temperature can reach 450. Built-in 800mAh large-capacity battery, equipped with Type-C charging interface, charging is faster and more convenient, multiple power supply options, can be connected to computer/USB port/mobile power supply, etc. 2.[Worry-free battery life]The USB soldering iron kit uses an 800mAh capacity battery, which can work continuously for 20 minutes after being fully , meeting your normal work needs. Can work while charging. 3.[Easy to operate]After turning on the USB soldering iron, just press and hold the power button for 10 seconds, the soldering iron kit will heat up to 400, effectively melting the repair circuit board. After the work is completed, place the soldering on the bracket and it will cool down within 1 minute. Very suitable for beginners, welders, basic household equipment, welding engineers in training, etc. 4.[Three Temperatures]Three adjustable temperature levels, low (300-340), medium (360-400) and high (420-450), can adapt to different work requirements. 5.[]USB Soldering Iron Cordless Welding Kit has built-in rechargeable lithium-ion battery, which can be powered without cables. Widely used for soldering circuit boards, home appliance repairs, jewelry and metal headdress making, computers and DIY. Name: USB Soldering Iron Maximum temperature: 450 Charging voltage: 5V Colour:black Material:Plastic + Metal Package Contents: 1 x Electric Soldering Iron Set 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.