1.Temperature adjustable: the adjustable temperature is 200450°C / 392 842°F, which can be converted between Celsius and Fahrenheit. It heats up quickly in just 10 seconds and reaches its highest temperature in 30 seconds 2.Userfriendly design: the soldering iron with highresolution LED screen display, which shows the temperature status more clearly. The heatresistant handle can effectively isolate the temperature and is better suited for longterm welding and repair work. 3.Battery soldering iron set: the USB soldering iron set has a builtin 800 mAh battery, which is of cables and makes the control more and convenient. It has a USB port for charging via battery, computer and mobile phone. Equipped with a Type C charging port, it takes about 1.5 hours for the battery to be fully charged, and it can be used continuously for about 30 minutes after charging. 4.Comprehensive soldering set: This soldering iron set contains all accessories for soldering work: USB electric soldering iron x 1, tip of the soldering iron x 3, rosin x 1, soldering iron holder (with sponge) x 1, charging cable x 1, soldering wire x 1, tool box x 1. The tip of the soldering iron is replaceable.