Stun Guns provides an effective, intimidating, and psychological deterrent. When deployed, a loud electrical current jumps from probe to probe which can be both visualized and heard from a distance. The Stun Gun's probes require direct contact with the attackers torso or major muscle groups. This stun gun comes with wrist strap for easy carry and slip on and off ability, a belt clip, on/off safety switch and trigger switch. Uses two 9 volt batteries not included.