The Pet Convincer II is a uniquely effective pet training device based on intensive research. The Pet Convincer works by releasing a convincing blast of air to redirect and focus the dog's attention on you. Correct any bad behavior: Excessive Barking, Aggression, Stealing, Digging, Jumping, Whining, Chasing, and much more! The Pet Convincer II features a sleek, contoured hand grip and improved one-piece nozzle to continue the tradition of effective pet behavior control. How to Correct Behavior: The best way to use the Pet Convincer in this situation is to set the problem up and correct it. For instance, if your dog likes to steal food from your dinner table when you aren't around, set up the dinner table with food on it and spy on your dog from a nearby room. Once he approaches the food, shout a word that sounds like "Ahhhhggtt!!!" and release a convincing, approximately one second burst (blast) of air from the Pet Convincer. If you win a few of these specific battles, you will win the war!