The material of the control and receivers is high quality. I had no problem setting them up for use and my dogs respond to them. I try to use sound and vibrate, but have not had to raise the "shock" above 2 (it goes to 15). The unit is easy to charge. It is also easy to use both collars at the same time.I would not use the collars as primary collars. They appear to serve more as a way to secure the training receivers around your dog's neck.

So far so good, I have no complains!

I did not hessitate to buy the same collar again.

Only wish I had purchased this ages ago.This no bark collar works great.

My dogs love to wear them and they do not cause any irritation under their legs as other harnesses have..

The first time we tried it, he only barked twice and then stopped.