I can't believe how well this product works- Especially for off-lead bad behaviours. My dog listens to my commands and does not have behaviour issues- that is when inside, or outside with a leash! As soon as I removed the leash, I was history, especially when he saw other dogs.
I only used the shock mode a couple of times and then only used the vibration mode. I used the unit for maybe 2 weeks and now my dog is an absolute angel and no longer need it. It's funny how he thinks it is the distraction that causes the vibration/shock, and runs to me like I'm his saviour. Works like magic!!!