Stun Guns.

Designed for self-defense, a stun gun is a low-amperage, high-voltage electric shock weapon meant to momentarily render an assailant disabled. Without any long-term harm, it disrupts the nerve system and causes discomfort and brief muscular disturbance. Stun guns have become a favorite self-defense tool for people, especially women and those usually on the go as they are non-lethal and easy to carry.