Approximately 13,000 gunshot detection systems will be given to individual footsoldiers later this month, according to the U.S. Army. The system, called Individual Gunshot Detector (IDG), is made by Reston, Va.-based QinetiQ North America.
IDG has four small acoustic sensors and a small display screen attached to the soldier's body armor that shows the distance and direction of incoming bullets. The sensors are each about the size of a deck of cards and can detect the supersonic sound waves generated by enemy gunfire. It alerts the soldier of the shot's direction in less than one second.