I have a Great Pyrenees Samoyed mix( mostly Great Pyrenees). He has all the GP traits, including barking to alert about the butterflies three blocks away. We live on a side street that’s used like a main road—UPS, FEDEX, USPS , elementary school, SS office, phone company all go through constantly. He loves the front porch. So his bark can be heard far and wide. I live in a small town with many many dogs. Tolerance abounds. He has many more friends than I do. BUT…. The bark….the bark….the bark…. This collar works so far! Started on lowest setting and it was good for a week ++. Went up just a little. Waiting to see. So far it’s wonderful.