Review on Aoyar Anti Barking Device Rechargeable by Elizabeth Woods

I have fully charged this device. Tried it on a dog. The dog hears this, but just stands there and shakes its head. Made the dog more aggressive and tried to pinch me to stop the signal. The dog disobeyed the detachment's commands. The only thing I found positive was that the dog would sometimes drop something in its mouth and turn around to see where the sound was and then return to its activity. I'm not sure if this is good for training other than shocking the animal's eardrums. Might work better on large dogs, not sure. Some dog breeds are more aggressive and difficult to train. Not to mention it's bad, my dog didn't like it.