Review on Sentient SoftWalker Leash Training Collar by Beth Allen

I have a 20 month old Border Collie who is very strong and pulls dangerously when walking. It sounded like the perfect answer. I put her in a collar. The first time she pulled we heard a beep and she looked at me. When she pulled a second time we heard a beep and I saw that she was thinking about what was happening. Never again heard the beep on our walk. Why? Because she immediately figured out how to pull to the side so as not to buzz! I was unable to adjust the collar to work with her on a leash, although I was able to get it to work on my own. She's just too damn smart for technology