Review on MODUS Ultrasonic Recognition Irregular Ultrasound by Kendra Simpson

I love this great little device. I bought it for my grandkids (laughs), a puppy was about a year old and he was barking around my house which caused a chain reaction with my dog and my other grandkids so i bought it. I put it in a central place and waited. When he got here he started barking and he didn't mind so we set him up and turned it on and after that he barked again and then stopped, he hasn't barked uncontrollably since. He behaves much better than the others because he doesn't make them bark anymore. It's unobtrusive, it goes almost anywhere. I will buy more so my kids can have it at home too.