Training system was just what I needed. I have 9 dogs of my own and out of all of them I’ve 3 nuisance barker’s. I needed to train those 3 dogs in the most humane way and those collars are just perfect for that purpose. Excellent Quality,Excellent Value. I would happily recommend to anyone.Very prompt service and a Spencer was absolute joy to deal with.He helped and guided me through purchasing the correct system for my dogs.Thank you