Dog Ultrasonic Sound. When used to train dogs, ultrasonic sound is simply a tool that you can use to get your dog’s attention. The tone annoys them, so it acts as a correction, and it stops when the barking stops.
If you do have something ultrasonic in your home, you can keep an eye on your dog’s behavior to watch for signs the sounds is bothering or annoying them. Can ultrasonic sound affect dogs? Is ultrasonic sound safe for dogs?