I didn't find this thing too useful as it is not loud enough to make noise over all the other noises in my house it works sometimes but not reliable enough to recommend it however this is just my experience.
We're looking at Bite Breaker and disappointed that the first poster isn't finding it too effective. Our pup is 7 months and still bites when he gets excited or tired. We've tried other methods and we were excited to find this option. Anyone else have a different experience or recommendation...we are desperate for a solution.
I got the pet corrector ( forced canned air) from petco. Works like a charm. I only had to blast it with a "NO BITE" 2 times. Now when the land sharking looks like it might start I say "do I need to get the air?" Roxy looks where I keep it and stops the biting.