The very first thing to know about a stun gun is that is not a taser. A stun gun is a personal defense item that requires you to make physical contact with the attacker in order for them to feel the electric shock. It is considered to be a “close proximity self-defense item.” On the other hand, a taser is a device that actually shoots and projects an electric shock on to an attacker from a distance. Tasers do not require physical contact but each device does have an effect range. Tasers are typically carried by law enforcement and in most states it requires an additional weapons permit to carry.