Use sound to deter nuisance barking with the PetSafe Ultrasonic Bark Control Collar. A sound sensor in the collar triggers a high-pitched sound every time your dog barks. The harmless ultrasonic sound is so high pitched that its inaudible to most humans, yet annoying to your dog. It stops as soon as the dog stops barking, efficiently conditioning away the urge. Use it anywhere your dog likes to bark at home, at the park or at the vet. Lightweight, water-resistant collar fits most sizes of dogs. A low-battery indicator lets you know when to change the three-volt lithium batteries (sold separately). Ultrasonic bark correction is often the best solution for many dogs. However, it will not work for all dogs due to factors like age, hearing ability and temperament. Cancer and Reproductive Harm- www.P65Warnings.ca.gov. Type: Bark Collars.
