 It's one that law enforcement is getting into so that they can diversify their defense options as well. The SD shoots a chemical irritant projectile that can disable threats from up to 50 feet away. Now, if you compare this to just like your average stun gun, you got, you know, like one or two shots with that. With the Berna SD, you have a seven round capacity. So you have seven chances as opposed to like one or two.