Get best deal at http://protectionbay.com or http://www.protectionbay.com/stun-guns/zap-stun-guns.htmlThis Double Trouble Stun Gun packs a 1.2 million volt punch!These weapons are exceptional quality and ideal for self defense (or simply for displaying- what a great conversation starter). The Double Trouble Stun Guns are made by a business called ZAP who has been among the top produces of Stun Guns for years.The Double Trouble stun weapon is really efficient because of the space in between the contacts.The greater the area, the higher the effect.Most stun weapons just have 1.5 inches, but the the Double Trouble has 5 inches between contacts.Rubber Coated Soft Shape Grip to make it easy to hold and hold on to.Safety switch is on the top with a red LED on/off sign to let you know if the stun gun is all set to fire.Utilizes 2 CR123A batteries (included).Also comes with a hand strap and FREE Nylon carrying Case with Belt Clip ($ 15.00 Worth). Just 6 long. Weighs just 6.9 oz.You need to touch an aggressor with a stun gun for it to be effective.The best places are neck, shoulder, abdominal area and groin.A half second application can cause some discomfort. An one or two second dose will trigger muscle spasms and confusion.A 3 to 5 2nd application will trigger the loss of balance and muscle control, confusion and disorientation.Stun guns will go through a 1/2 inch of clothing.There is no shock back to you even if the assailant is touching you.4.3 milliamps depending on the freshness of the batteries.