Snakes, insects and birds such as geese, use their hiss sound to drive off predators, and our domesticated pets have an instinctive sensitivity to this sound. The Pet Corrector emits a hiss of compressed gas which mimics this sound to interrupt undesirable behaviours such as jumping up, stealing, chasing and barking. The inert gas is safe, has no smell and works on most animals including dogs, cats and horses. There is a detailed training guide included, with helpful training tips and key dos and don’ts.