The smallest and strongest single battery 700k-volt stun gun you can find. The strength from a single 9-volt battery is amazing! You will be delighted with the power this small stun gun puts out. This gun includes a built in personal alarm and safety switch. Comes with a belt clip and nylon holster. Will fit Nicely into a pocket or purse. Lifetime warranty. One 9-volt Energizer battery (not included) is all it takes to operate this stun gun. Size: 4-3/4" x 2-3/8" x 1-1/8"