Great thread, so we went for the wireless, picked up a unit at Walmart in Rochester. What a store !
Anyway, just plugged it in to the garage and then just adjusted the range and intensity in about 10 minutes. Kit comes with 1 collar, so we had to get a second collar(that was pricey).
The only thing is that due to the range circle, to get the dogs the maximum yard usage on one side of the house, it restricts them from going on the dock
I like the unit as it gives off a very loud noise about 5' from the area where is "zaps" Dixie just loves it as she hates to be tied up and now can tan herself just about anywhere on the property.
Unplugged the unit and brought back to Connecticut and set it up and adjusted the range in about 5 minutes. Jotted down the numbers so we dont forget and we are all set.