||Radio frequency identification (RFID)
||Integrated data read by radio waves (similar to merchandise control tags commonly used in stores). Data could be stored in a variety of ways, such as on a magnetic strip or memory chip. An example for use in gun technology is embedding a data chip in a watch or ring, with a reader embedded in the firearm. The firearm “recognizes” the user via the data chip, the safety disengages, and the gun can be fired. When originally examined by Colt, the iGun technology was designed for long guns; the project has largely been abandoned. Another version of this approach, called TriggerSmart, is under development by the Georgia Institute of Technology in Ireland. A design feature under development, known as “wide area control,” would allow a receiving device embedded in the firearm to be enabled or disabled remotely when entering designated areas, which has possible military application.