PetSafe Birdhouse UltraSonic Unit

Automatic ultrasonic sound effectively stops nuisance barking Use to prevent any dog within zone - including yours OR your neighbor's dog - from barking Works up to 50 feet away Control outdoor nuisance barking - even your neighbor's dog. Triggered by the sound of a bark the unit emits an ultrasonic tone to interrupt any dog's barking within the designated area. Effective up to 50 ft. Durable hard plastic weatherproof device includes coated steel wire for hanging or back slot for mounting. Includes 4 settings with 3 sensitivity levels and a test mode. Requires one 9V battery (not included). Measures 4-1/2" x 3-1/2" x 7- 3/4" high. How to set up The Birdhouse UltraSonic Unit should be placed facing the dog and within range of the dog. The unit is designed with provisions for hanging or mounting and should be positioned at a height of no more than 5 feet. This unit can also stand alone. For best results, the area between the Birdhouse UltraSonic Unit and the dog should be free of any large obstacles.How it works When the Birdhouse UltraSonic Unit is within range of constant barking, an internal microphone picks up the sound and the unit is activated. The unit then emits an ultrasonic sound. The ultrasonic sound can only be heard by the dog. Startled by the high-pitched sound, the dog should stop barking, as he will associate his bark with this unpleasant noise. Features Uses ultrasonic sound to deter unwanted barking Detects barks up to 50 feet with the use of an internal microphone4 levels of operation including a test mode Durable and weatherproof for outdoor usePossible Uses for the Birdhouse UltraSonic UnitStop your barking dogStop your neighbor's barking dogTrain puppies not to bark Deter barking dogs on camping tripsPlease click on "More Information" for instructions.