All TASER units fire a 50,000 volt charge from a distance of up to 15 feet. TASER cartridges work anywhere on the body, unlike other personal defense options that have a specified target area. Best self defense you can buy for women and men. TASERs are legal in most states without a permit.  Buy TASER for personal defense. When fired, the TASER C2 will deliver a 30 second energy burst. During this window of opportunity, you can set down the TASER C2 to keep the attacker incapacitated, while you escape.