This is the training system I used. It is easy learning and comes with DVD's that show's what to do and not to do. This took Harley and I from basic commands to advanced commands and learning. Well worth the purchase.
This is a shock, vibrate and voice command collar that I have used. I don't use the shock feature because the vibrate feature work's just fine for my dog. It also has a feature that you can record a voice command also assessable through the remote. My selling point for this collar was the probes for the shock portion are retracted into the device as not to irritate the dogs skin. It also has an 860 yard range which I also liked since we don't have a fenced yard. Good product at a fair price.