Streetwise brand stun guns have more features than any other stun gun on the market. Just test firing this unit into the air is often enough to stop an attacker. As the bright electric current pulsates between the test prongs and creates an intimidating electrical sound an attacker with any sense at all will be stopped in his tracks. They stand behind their products and are constantly updating and upgrading the product line to stay on the cutting edge of this market. They offer a wide range of stun guns from small to large, but all are very powerful and backed up by the best warranty in the business.