Repeller Device Trainer Control Barking Anti-Bark Stop Ultrasonic DogHelpfulThis anti bark control device helps train good behaviour and reduce bad habits,like barking, digging, clawing, biting, scratching, and getting on furniture. Safe Lightweight and portable, our handheld dog bark control system stimulates dogs through sound that humans can' t detect and won' t hurt the auditory sensors of pets or other animals for safer daily training. ActiveThe Updated ultrasonic dog bark deterrent makes you handy when training