Didn't know where to post this, so here goes. My wife is trying to train a headstrong Lab puppy, and decided we need a training collar. I started shopping for one, and I am overwhelmed by the almost infinite choices.

Since I don't know a lot of dog trainers, I thought I would ask here. What brand is the most reliable? How much range is really needed? Any particular brand/model that is the one the rest try to match up to?

Don't have a particular price range in mind, but I only want to buy one....not have to go through several to get the one that does what we need.