PetSafe Outdoor Bark Control is an ultrasonic outdoor bark control unit looks like any ordinary birdhouse that can hang in a tree, on a fence post or anywhere outside. It detects barking from up to 50 feet away and has 4 range settings. Whenever your dog - or your neighbor's dog - barks, he will hear a safe, high-pitched sound (inaudible to humans) that will cue him to stop his annoying habit. Deters nuisance barking with a decorative touch Looks just like a cottage birdhouse Completely waterproof Detects barking up to 50 feet away Easily hangs/mounts on a tree, wall, or fence post Keeps your own dog or your neighbor's dog from barking 4 settings including 3 sensitivity levels and a test mode Operates on a 9 volt battery (not included)
