Features: Exclusive three adjustable modes, Press the switch once, the temperature of the redness indicators light is 430-450℃. Press the switch once, the temperature of the blue indicators light is 370-400℃. Press the switch button for 2 seconds to starts the green indicators light at 330-350℃. USB Soldering Iron Cordless Soldering Kits is built-in rechargeable lithium battery to provide power. Widely used for soldering circuit board, appliance repair, jewelry and metal headwear making, computer Once the work is over, place the soldering head on the stand and it will cool down within 1 min Suitable for beginners, solderers, basic household equipment, soldering engineers in training. Specifications: Component:Aluminium Color:White/Black/Gray Size:Approx.15cm/5.9inch Package Includes: 1 Set Soldering Iron note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual of the item.