The PET CORRECTOR quickly and humanaely breaks animals of unwanted barking behavior. The PET CORRECTOR is a simple spray can filled with an inert gas with a special nozzle device. The combination of the audible and inaudible sounds (to human ears) produced when the nozzle is depressed and the gas is released, sound to a dog like a hissing snake, a sound that domesticated pets have an instinctive sensitivity to thus interrupting the unwanted behavior. There is a detailed training guide included with helpful training tips and key dos and don"ts. It is important that the Pet Corrector is used responsibly and that alternative desirable behaviors are rewarded.