Invisible Fence

We had an Invisible Fence installed around the perimeter of our lot his past Monday. Inmediately after the installation the training started for the dogs and yours truly. It consists of taking one dog at the time fitting it with a collar that has a sensor. When the dog walks to the perimeter of the lot a high pitch sound goes off and calls the dog's atention, at the same time the owner retrieves the dog inside the lot and praises him. I do this training twice a day for about 15 minutes for each dog. Sue, and Beemer have not problem with the sound. Simon is a little deaf and in addition to the sound we had to start him with a bit of shocking current. It is not bad on Simon, it just helps him know that he has reached the perimeter of the lot. The trtaining will take about 4 weeks and by that time they should know their boundary. We are spending a lot of time and having lots of fun together.