Well, I owe you a very big THANK YOU! Your K9 electric dog fence is the greatest thing. We fenced in 4 acres and my big Cléo has not once ran away since. Training was super easy and fast. I'm sure it's saved her life (and ours also). Without K9, I don't think we would have found a way to keep her home. Thank you so much. Louise P Havelock, QC