This companies whole system and their trainers are quite unique. For me this was not about just containing my dogs as I have a fence. In the front of my home it's used for containment but in the back its used for territorial aggression behaviors, with my dogs and my three ajoining neighbors yards who also have dogs and to keep one of my Shepherds from going in our pool. Unfortunately for me,in the beginning I bought and installed my own system elsewhere. That was a very hard job for me as I am a woman and had to dig around my homes whole perimeter that I wanted to include. This started out with me wanting to keep one of my three dogs from swimming in our pool. But because you get so much wire I thought I would take advantage of it. I also thought I could handle the training on my own as well. Shortly after I find out that weather proof and waterproof are two different things and also that all my dogs are not the same in the collar correction department. One of my dogs needed a higher correction then my other two dogs and this was not achievable with the three collar system I purchased on my own. Before moving forward with this and the fear of harming my dogs I did a Google search for the Invisible Fence Company to see what their system was all about and contacted them. Luckily for me, they were able to use the wire that I had buried along with their system and their collars are waterproof and gaurenteed for life. Of course I had them come out for their free consultation and decided to use them. ( I found out the hard way......you pay for what you get) I still wanted to try and train my own dogs but after seeing these people handle my dogs and their techniques it is worth every bit and then some for them to take over. They actually bring their own pets along to help train yours. Jill one of my dogs trainers is so very personable and knowledgeable, knowing a lot about my breed (German Shepherds) and their characteristics helped me understand my dogs boundary behaviors. She takes the time with each of my 3 Shepherds as they have different collar settings and need different training. That's another great thing about their system it is soooooo very customizable from the meekest personality to the strongest and I have both. As she explains and tweaks their collars I'm assured they are where they need to be. I'm going to miss Jill when these sessions are over as I have become very fond of her. So "thank you" Invisible Fence.....for such a great product and the opportunity to meet Jill who has given me great insight to the products features and how to understand my breed of dogs behavior better. I highly recommend this company!!