I'm a first time puppy owner of a German Shephard that is growing rapidly. I was instructed to try choke collars, but wanted to give Loyal Leash a shot too. Very happy I did. The bluetooth link works very well. Coming out of the gate, I focussed on the audible and rewarded according to suggestions from the instructions. It worked great. My dog has been walking with me and the Loyal Leash for about 2 weeks and he's no longer "all over the place". I've even begun taking it to the next step with simple stay / down / sit commands. Combine the audible with the verbal command and it's worked like a charm. HIGHLY RECOMMEND