PetSafe Outdoor Ultrasonic Bark Control

Ultrasonic Bark Control – When your dog (or your neighbor’s dog) starts barking, the unit emits a safe, but annoying high-pitched ultrasonic tone; when the barking stops, the tone also stops.Discrete Design – Hang the cleverly designed birdhouse in various places around your yard or property line; keep the unit within 5 feet from the ground.1/4-Acre Coverage – Hang the birdhouse in a tree, on a fence post or anywhere in your yard to cover up to a 1/4-acre area; if you need to cover more space simply purchase additional units.Weatherproof – Use this bark deterrent in any season and during all weather conditions to stop excessive barking.Battery-Powered – Unit uses 1 9-volt alkaline battery (not included); battery lasts up to 2 months depending on how often the dog barks.No Bark Promise – All dogs respond differently to ultrasonic tone; if this product does not work for your dog please reach out to PetSafe Customer Care to find the right solution for you and your pet.