This is Copper the most energetic dog that I have met. He loves playing all over the house, there are times wherein he tends to sneak out then run outside. I am afraid that he will get lost and I can’t keep an eye on him since I need to work. I am thinking of installing an electric fence, but I am not that sure whether to get a wired or wireless one. Which do you think is better at setting up a boundary for my dog?