Snakes, insects and birds such as geese use the hiss sound to drive off predators, and our domesticated pets have the same sensitivity to this sound.
The Pet Corrector emits an inert gas (like fresh air), which mimics this hiss sound to interrupt undesirable behaviour.
Pet Corrector can be used in many situations, though the main uses will include unwanted barking, jumping up, stealing food, place avoidance and aggression.