We got our new puppy this collar for Christmas, because she has been a bit aggressive and sometimes bites our children. We don’t want to strike the dog, and she is still learning to obey vocal commands. This collar is helping tremendously as we accompany a verbal “no” with something that gets her attention. Now when we tell her no she responds much better. Hopefully we will only have to use this a training collar and eventually it won’t even be needed!