The Shooter is a conceptual fire extinguisher thought up by designers Eunjung Kim, Yangwoo Kim and Junyi Heo. It makes putting out a fire as easy as aiming and pulling the trigger, which will send a cannon round full of CO² at the blaze. If that doesn't put it out, just keep firing — you've got eight shells in there. The idea is that it's far easier to use than your average fire extinguisher, it's able to be reloaded and keeps you away from the blaze. It's got a laser sight (which probably won't help out too much in the event of a large fire), as well as an alarm to warn everyone around you.
If you don't know how to use a conventional fire extinguisher, you may want to brush up on how.