Sonic Outdoor/ Indoor Bird House Barking Control,CJMJ Ultrasonic Dog Bark Controller in Birdhouse Shape

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Sonic Outdoor/ Indoor Bird House Bark Control,CJMJ Ultrasonic Dog Bark Controller in Birdhouse Shape Stop nuisance barking with the Ultrasonic Dog Bark Controller in Birdhouse Shape. This product aims to solve excessive, noisy dog barking by emitting an ultrasonic sound to silence the dog. The ultrasonic frequency is not harmful to pets and completely inaudible to human ears. The sensitive microphone isolates and picks up barking up to 50 feet away to solve your dog's or your neighbor's dog's disturbing barking problem. This product is only suitable for outdoor use. This is the perfect solution for some peace and quiet from loud, barking pets. How it works : Insert a standard 9-volt battery into the Ultrasonic Dog Bark Controller in Birdhouse Shape. The unit is automatically activated by the sound of barking. When the device is within the range of a barking dog, the microphone will isolate and pick up the barking to emit an ultrasonic sound to silence the dog. The device has three range levels, including a test mode, and is effective up to 50 feet. What's included : Ultrasonic Dog Bark Controller in Birdhouse Shape (battery not included) and user-friendly manual