If your dog or your neighbor's dog is a nuisance barking dog, reduce or stop barking with an ultrasonic dog silencer such as the Lentek Super Bark Free . Super Bark Free uses an old age principle of "negative reinforcement" using sound to help train dogs to stop annoyance barking.

Super Bark Free is an ultrasonic dog product that is the most effective, unobtrusive bark control device on the market today.  An ultrasonic noise is emitted every time it senses barking dogs . With this dog training device, there is no about large, obtrusive shock collars. Just place the ultrasonic animal control device within a 50 feet radius of your dog or your neighbor's dog. Place the bark stop device about 2 to 4 feet high, depending on the size of the dog, and face it towards the dog's path. Any type of obstruction, which could deflect the sound, may lessen the effectiveness of this pet training device.

The Super Bark Free has a specially designed sound selector that lets you choose frequencies, which can only be heard by dogs and cats, or lower sound tones audible to human ears. This ultrasonic animal control device operates in a seemingly quiet manner to stop barking dogs.