I have a 12 month old pug with what I call "passive aggressiveness". He's very protective of our family, to the point where he barks and whines and lunges on his leash at people. He would never harm anyone, as a matter of fact if anyone tries to approach him, he runs with his tail tucked between his legs. Anyway... his reaction to people is pretty scary for anyone who doesn't know him so I need to stop the behavior. Enter this training collar. I don't use the shock pins, because the beep and vibrate are enough to keep him in check. When I need to correct his behavior, I give him a beep and say "NO". If he doesn't stop, I give another beep and say "NO" again. If that doesn't work, I go to the vibrate. In the two days I've had the collar, I've only had to use vibrate once and it worked as intended. As I write this, he started barking at someone walking past our house and I said "NO" and held up the remote. He immediately stopped the behavior without needing a beep. I know it's not a magic fix-all and will take some work, but so far it's working better than anything else I've tried. For the price, it's amazing. I would highly recommend this to anyone who needs to adjust behavior without needing to go full shock on their dog.