Review on Ultrasonic Dog Bark Deterrent Rechargeable by Beth Wagner

I ordered this for my son-in-law for Christmas and got so much good from him that I ordered one for myself to deal with the neighbors' dogs barking. A few minutes ago, a neighbor's dog stood in the middle of my yard and barked at my cats. I opened the window, pushed the button and his ears fell back and he had a desperate look on his face. I squeezed him again and he slowly ran away. I squeezed him again and he ran, looking over his shoulder like he was afraid to come towards him. . My neighbor needs a fence to keep his dog indoors! Until then, this seems like a working option to us (while I'm at home to push the button).