We first made a purchase from The Dog Line 18 months ago when we moved onto 2.5 acres. We were afraid our Boxer would wonder and get hurt, lost or picked up by the range. Friends of ours already had the collar for their 2 dogs and had seen how good it worked for them. I had to set it up (and not being to tech savy) had to make a few phone call, and I was amazed at how easy it was by them talking me through everything over the phone. Then about a year ago, we got another dog, and there was no question we were going to use the collar on him too. He is a Boxer also, and he jumps all over our visitors...so I purchased the training collar too. Its working a treat! Anyway, as you can see by the photo I have attached, my boys have a very hard life and their collars don't bother them at all whilst crashed out on my bed! Thank You Dog Line.