What a remarkable difference this has made. We have two rescue dogs, therefore they were not raised on our property. We installed this system and trained our boys that the flags indicate their boundaries. I had to modify collars for my dogs (very easy with a leather punch) as the collar that came with it is for a medium dog.Peace of mind knowing that they can run and play - but stay in my yard.

After seeing the neighbors spend $$$ to have these systems professionally installed, I decided to try it myself. The installation is straightforward and saves tons of money. The receiver has worked flawlessly, with great battery life. Batteries are readily available from a variety of sources, ensuring years of service. My dog is not testing the line very often, and has really easily learned the area she can roam. I installed the line with plenty of slack, and have had no issues with line breakage due to settling or heaving. Great value....

The vibration strength is great and is normally all that is needed now that our dogs are use to the dog training collar.

It works like a charm i have a 75 pounds pitbull and he is really obedient .. and a good boy too but when off the leash he would of want to say to everyone and not everyone wanted to be great by a pitbull understandable !!! Installed this is my yard / front of the house and now he wont dare to go say hi to any one!!! One week of training with him also getting snap!! Lol grate product!!!

Definitely would recommend!

Works great. My dog no longer wanders. I like that I can select a correction level that provides a tone but no shock. It does the trick and if my lab decides to ignore the tone, I can set the correction to include a mild shock.