I have a chocolate Lab that I have had since he was 10 months old. He is trained to an under ground fence. He is a very good dog and has been fixed. He has always been an outside dog. I would like to give him to a good person who will take good care of him. I will also give you the collar and transmitter that goes with it. You would have to buy and install the underground wire yourself. message me for my number and I will give you more details.