I had my doubts as to whether the barking/lunging/pulling on a walk could be corrected quickly, but the collar really does correct the behavior immediately with a good tug. The video is very helpful in demonstrating the training that we need to learn in order to teach our dog.

We are in the process of training our puppy. It has been hard.

This is a great way to communicate with you dog. You can show them the behavior that is not desired and correct them immediately so there is no confusion.

When you apply the principles correctly, you'll be amazed. My dog can walk off leash at the park, and heel off leash after only a a week of training.

Amazing transformation