Stinger Systems, Inc. is a publicly traded company. Stinger Systems, Inc. was founded in March 2000 as Electronic Defense Technology, LLC. Stinger entered the market to produce a quality line of less lethal electronic products to law enforcement agencies particularly of the criminal justice system. Stinger's first products included the Ultron® II handheld, contact stun device the electronic power shield, and the REACT™ electronic prisoner and defendant control system. Stinger also was responsible for nationwide training of product users having provided over 80,000 officers with complete documented training in the event of litigation over product use. Customers include the US Department of Justice, INS, Federal Bureau of Prisons and the US Marshals Service. In 2004, Stinger extended its product line by creating the Stinger™ non-lethal firearm which utilizes the same power output that the Ultron® II utilizes. The Ultron® II has sold more than 12,000 units in the U.S.