Does the trick
My beagle used to embarrass the heck out of me when we walked in the neighborhood. When he saw any dog two blocks away the barking and whining and howling persisted until they were half mile behind us. This collar has virtually ELIMINATED the problem. He still whines a bit, but nothing like the incessant noise he used to make. The correction is humane - starts out with a sonic tone, and if the dog escalates the barking after that first tone, the correction becomes stronger with each bark. All he does now is hear the tone and he stops. Great product.