I purchased this collar for our 1 year old boxer to help train him not to jump on my children. I hoped the vibrate feature would be enough but we ended up having to use the shock feature for it to have an effect. After figuring out what strength to use, he completely stopped jumping after only three days of use. The instructions were clear and helpful and the battery life is awesome! The lock button is a nice feature too because my little one did get a hold of it a couple of times. Overall a great product and would recommend it to anyone needing some help training their pup.