This Guard Dog Hornet stun gun keychain is a mere 4" long and weighs less than 2 oz. But don't let it's ultra-compact size fool you. When you need it, it delivers a powerful 6 million volt shock that drops thugs and thieves to their knees and makes them cry out for mercy. Also features built-in 3 LED flashlight, fully rubberized body, built-in rechargeable battery and key ring.