Guard Dog SGGDK400HV: The Guard Dog Katana presents a premier self defense and survival option. For the first time ever, a tactical flashlight and concealed stun gun with a steel-point tail cap for self defense or glass breaking. Made with aircraft grade aluminum, the Katana is durable and shatterproof to withstand high pressure situations. With a contoured hand grip, you can use the device with the comfort you desire. All with a swift one-hand operation, the Guard Dog Katana shines 400 lumens of light, visible up to almost 400 yards. Hidden within the front bezel is a concealed stun gun, capable of incapacitating an assailant. With Guard Dogs Concealed Inner Stun Technology, there are no visible prongs. The Katana can be charged at home or in the car, with dual charging capabilities.