It works by emitting a hiss of compressed gas to interrupt a dog’s unwanted behaviour. SAFE & HUMANE way to retrain canines to prevent excessive barking, jumping, stealing food, digging and chewing. EMITS A HISSING SOUND through a quick burst of compressed air that mimics the warning hiss of a snake or cat to distract the dog, so you can teach better behavior and commands such as quiet, sit, leave, and stop.
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