Unlike a standard contact or drive stun-gun, the Multi-Functional Stun Gun has a range of between 1 and 12 meters using a choice of 8 different cartridges. (See options below). The Multi-Functional Stun Gun is specially designed with High Voltage, low Amperage DC output. This makes it safer than other traditional AC design products, which can cause ventricular fibrillation (heart attack) to the human body. Further design features are the built-in powerful LED light, safety pin with wrist strap for anti-theft and to prevent unauthorized use. Finally the carbon composite material makes the device extremely robust.