My fiance and I had a very hard time coming to the decision of using a bark collar on our dog. We tried every option first. However our dog does not like to stop barking and barks at EVERYTHING. We bought this collar and it works. I noticed a major difference between now and prior to the collar use. Even when the collar has been taken off there is less issues with barking. I would highly recommend this to someone who is out of options to rectify or correct the behavior.