The S.M.A.C.K. 16M Keychain Stun Gun is unlike any other stun gun on today’s market, due to the combination of its small size (3″ x 1.25″ x 0.75″) and immense power. The Streetwise S.M.A.C.K. (Stun My Attacker Compact Keychain) Stun Gun uses high-quality components to give your attacker a jolt of 16,000,000 volts. The black model features a black nylon holster with a belt loop for convenient carrying. A lifetime manufacturer warranty is included.