The Lightning Rod 800,000 volt stun pen is only 6 inches long and about an inch thick so it is easy to conceal and handle. But with 800,000 volts it packs a powerful punch. It is slim enough to carry in your pocket or slip into a purse, giving the potential victim the element of surprise. It has 2 powerful LED lights to serve as a flashlight for nighttime safety, and it has a protective safety cap and on/off safety switch to prevent accidental discharge. The LR800 comes with a holster with belt loop for easy carrying. It requires two (2) CR2 (3 volt) lithium batteries that are included. The Lightning Rod is made of the highest quality components and comes with a lifetime warranty.