Small enough to fit inside a pack of cigarettes the ZAP emits a surprising amount of voltage - 950000 volts. It features a unique rubberized texture a safety switch to prevent accidental firing and a "ready to use" LED indicator. It is powered by 3 Lithium batteries included in the package. With its compact size the ZAP is easily concealed in a pocket or purse yet will bring a grown man to the floor in a matter of seconds. It is incredibly loud and frightening and perfect for your protection and peace of mind. Includes a nylon holster.