Negative Positive
Title: Works on some dogs.
Review: I have 2 dogs and I wanted to use this for training them to not jump on our guests or doing other bad things in the house. It works great on my 3yr old and will respond to it by stopping anything she is doing and just look at me. Now my 1 year old....... he could care less about the sound. He just keeps doing his thing like he does not hear anything.
Is the review positive or negative? 