I have a "runner", actually a cross country runner, a track star! She had me chasing after her, both by foot and car. We gave the neighbors something to watch daily (we live in the country, not much to do but watch our neighbors). I rescued Ruby from the shelter 6 months ago and she hasn't learned recall yet (very stubborn). Exhausted, I bought the Bebang Collar and LOVE IT! I have had to shock her only twice, once when she took off running (the vibration mode didn't get her attention) The second time I had to shock her was when she was fighting a woodchuck. Now I just put the collar on her (I don't even have to turn it on)
I like everything the collar and remote has to offer, however the instructions are a bit vague regarding using the second collar for my orher dog.