When the Outdoor Bark Control Birdhouse unit is placed within range of a constant barking dog, an internal microphone detects the barking sounds and the unit is activated. The unit emits an ultrasonic sound that can only be heard by the dog. When the dog is startled by the high-pitched sound, it should stop barking as it will associate its bark with this unpleasant noise. The unit includes a digital timer that can be programmed to turn the unit on and off at specific times, just like an alarm clock.
Built-in timer has two programmable on/off presents
Uses Ultrasonic sound to disrupt nuisance barking
Detects bark up to 50 feet away
Durable and weatherproof
Two color LED for good/low battery indication
Uses 9v alkaline battery
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