Barkoff.me is a great place to look at the BarkOff device. Would we be better off if the VP was the one operating the device? BarkOff is a safe, pet friendly way to stop dog barking. BarkOff sends a modern high-tech ultrasonic signal that immediately attracts the dog’s attention and stops their barking. BarkOff’s ultrasonic signal is inaudible to humans, so you and others nearby won’t hear a thing. BarkOff really works!