The PetSafe® Big Dog Deluxe Spray Bark Control Collar senses your dog's barking. A unique, patented sensor uses both vibration of the vocal chords and sound sensors (Perfect Bark™ - dual-detection) to distinguish each bark from other external noises. As he barks, he receives a safe but annoying burst of spray. He'll quickly learn the association with this stimulation and stop the unwanted behaviour. The PetSafe® Big Dog Deluxe Spray Bark Control Collar is proven effective in deterring barking when it is worn.
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