Unusual Dog Situation.
We had significant challenge, having three dogs One very old and one very young. One was large and one was very small. Two had previous experience with shock and one did not. Although we were concerned at times as the process unfolded, in the end - All three dogs adjusted to this system beautifully. They all now respect the wire perimeter and don't go near it. We really appreciate the inside area transmitters that generate a signal across two of our doorways keeping our animals out of restricted areas. Our trainer/installer was very knowledgeable & skilled.