 | Kennel SilencersThere are two types of kennel silencers on the market today, ultrasonic kennel silencers and waterjet kennel silencers. Different from barking dog collars, kennel silencers work by emitting a pure ultrasonic tone or stream of water whenever a dog barks within 25 feet of the system. These systems are designed to control barking within a 2,000 square foot area. These units help control the barking of dogs in a completely harmless manner.
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