With the PetSafe Ultrasonic Indoor, no receiver collars is needed to correct your dog’s barking problem. The PetSafe Ultrasonic Indoor Bark Control will curb your dog’s excessive barking with a harmless, 2-second ultrasonic tone. Humans can detect it but dogs can and they dislike it. You position hold the PetSafe Ultrasonic Indoor Bark Control on a table, floor or other surface or you can hold it in your hand. When your dog (or dogs) bark, it triggers the Ultrasonic Bark Control to emit its sound. At first the dog is distracted from barking, but it soon learns that excessive barking will result in the sound. This will naturally curb the bad behavior. The PetSafe Ultrasonic Indoor Bark Control unit will work on dogs with a 25-foot radius of the device. It only triggers after successive barking which allows a normal dog “talk” to occur. It requires a 9-volt battery to run (battery is not included).
I have 3 small dogs that would get frantic when I came home. I have tried everything to get them to stop barking but nothing worked. Within 1 week of getting this, the bark has all but stopped. Now coming home is a pleasant experience.