Review on 🐶 MODUS 2-in-1 Dog Barking Control Device - Automatic Anti Barking with 3 Adjustable Ultrasonic Levels, Indoor Dog Bark Deterrent Box – Safe for Humans & Dogs, Sonic Bark Control for All Dog Breeds by Sara Cassidy

I have barking champions. I bought MODUS because my two small dogs, both under 7 pounds, would bark at any sound. It got to the point where I couldn't take it anymore. I paid more for it than I wanted but thought I might give it a try. I put the battery in and turned it on and knew right away that it was working. The dogs stopped barking. They don't like the sound, so I use it as a teaching tool. I turn it on to stop barking and turn it off when they calm down. My dog is a bit feisty and does bark briefly, but not like she used to. My only complaint that I had in the pre-purchase comments was that it's hard to tell if it's on or off. It's a pain, but once I figure out the system, it works. I really just make a loud noise and when the green light comes on then the device is on and I turn it off. Barking has decreased significantly so it works for me and I would recommend people try the product.