There are a few different methods to control dog barking. For one or two dogs the best devices are spray collars or shock collars. If you have a more than two dogs then the best anti bark system for many dogs would be an ultrasonic bark deterrent.
Even if it is not your dog but your neighbor’s that barks incessantly an ultrasonic deterrent would work for you also.
How does an ultra sonic device work?
When a dog is within range (up to 50 feet) of the device an internal microphone picks up the sound and the unit is automatically activated. It will then emit an ultrasonic sound (3 levels) that can only be heard by dogs. The high-pitched sound startles the dog and in no time they will relate the unpleasant sound their barking. They quickly learn that the sound will disappear only when they stop barking.
This unit is a highly effective bark-deterrent in disguise as a "decorative birdhouse" that is safe and effective for all breeds and sizes of dogs. It is durable and weatherproof so you can place it inside your home or out. Designed to be hung easily from trees or quickly mounted on fence posts, if you use it outside, and uses ultrasonic tones to quell excessive barking from dogs nearby. In my opinion this is the best anti bark system for many dogs, whether its yours or your neighbors.
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More tips on methods to stop dog barking HERE: