Power from 25 to 75 watts, soldering wirelessly anywhere and anytime, refilling with butane in less than 20 seconds, practical viewing window and quick reloading, butane filling allows for up to 60 minutes of continuous operation, easily convertible for hot air applications, save time and effort with tool-free tip changes, the piston automatically locks into position when the cap is closed, the included pocket-sized carrying case protects your cordless butane soldering iron on the go.