It is a shock collar, but its to keep him in the yard and keep him safe. Its not for barking. He's been trained well and respects the boundaries of the electric fence.
I took this pic of Isabelle and gave it to my mom for her birthday! I didn't pose Izzy...she did it all by herself! LOL! :)
And since the first pic, she got a hair cut and now she looks like a totally different dog! :)