I’d just like to leave my review on this product and say what a brilliant system. I’ve had it up and running for about 1 month. I found this online after needing to stop my dog from aggressive behaviour at the fence to other dogs walking past and always worrying about him getting over the fence this has been a resolution to say the least. Thank you to Shane and Colin for your installation guidance and problem solving. I recommend this system to everyone looking to keep their pets safe in their yard and to prevent the worry of something bad happening. Lastly I wanted to share the importance of the training steps in the first week. If you take the time and do this well it really helped my dog understand and learn well. Thank you so much I really am stunned that this has worked. Xx Lee