I love the idea of this collar. Problem is that it doesn't work properly. I have only seen it spray my dog once which was very effective at getting her to stop barking. However, it hasn't sprayed her since that first time, despite her continuous barking. I am unable to make it spray me no matter what kind of noises I make. My husband can get it to spray if he holds it "just right". Her barking is so disturbing that I am going to have to try some more drastic measures. My only advice to you is DO NOT WASTE YOUR MONEY!