A MIRT—Mobile Infrared Transmitter—is a device used by law enforcement and ambulances to turn red lights green. It is very illegal and very bad to have in your possession and if you decide to build one, we take no responsibility for the world of hurt you'll be in if someone finds out. Otherwise, solder way, haXorz!
DIrtY MIRT (Do It Yourself Mobile Infra Red Transmitter [I-Hacked]