So you have a barking dog that sounds the entire neighbourhood? You want your dog to bark less. Want to train your dog to stop barking? You can now use the principle of negative reinforcement to train dogs to do just as you please. This bark deterrent is human and effective. Here is how it works.

When the dog barks – within a distance of 35 feet, Bark Stop detects it and emits a high pitched noise. The noise cannot be heard by humans but dogs can hear it. The sound does not harm the dog, but the dog does not like the sound either. So in a matter of time, the dog is barking less and less and your barking problem is over. 

The size and breed of dog does not matter. Bark Stop Professional works with all of them. There is an included mounting bracket. Just install it and point it at the yard where the dog normally barks. There are two tone settings – ultrasonic, which only dogs can hear and audible which humans can hear as well.
 
You can use this indoors or outdoors. Included with the pack is Bark Stop Professional, AC adapter, 50 feet power extension and Wall mount bracket. This costs you $49.95 and will perhaps give you a good deal of peace.