A stun gun as a handheld device that puts out a high voltage shock and stuns the attacker. All a person needs to do is touch the assailant with the stun gun to immobilize them for several minutes. This provides enough time to get away and call for help. Thus, it is easy to see why so many people buy stun gun as a method of protection against possible threats of attack, violence, rape, and theft. It is a fast, effective and non-lethal weapon that can effectively disable an attacker of any size or strength, even if they are under influence of drugs or alcohol. Stun guns work by targeting the nervous system. They send out a high-voltage shock that is large enough to halt the neurological impulses reveling through the body, overwhelming the neuromuscular system, and causing instant disorientation, and loss of consciousness and balance. At the same time, the voltage is not large enough to cause any serious or permanent damage. As a general rule, a one-half second contact from a stun gun will repel and startle the attacker, giving some pain and muscle contraction. One to two seconds will cause muscle spasms and a dazed mental state. Over three seconds will cause loss of balance and muscle control, mental confusion and disorientation.