A lot of our families use these Poochie Bells with GREAT success but
almost all of them have ALSO used the bells along side Crate or X-pen training or after their puppies were basically
potty trained but they just needed the puppy to
learn how to notify them (not all puppies will naturally bark or whine and will just «go» if you're not able to read their subtle body language or their not on a strict schedule).
You will know it is time to advance your cue work when your dog a) eliminates
almost immediately upon entering the
potty area and b) you have
learned your pup's body language well enough to be able to predict with at least 80 % certainty that he / she is about to go.