Using the latest ultrasonic technology, the DAZER produces a discomforting but
not harmful high frequency sound audible to dogs but not to humans. Help stop ...
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Sep 20, 2013 ... There was an ultrasound dog collar that was meant to repel fleas, which
researchers found had absolutely zero effectiveness. And the little plug ...
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Feb 20, 2013 ... A field test of a ultrasonic dog deterrent. ... Dazer Ultrasonic Dog Deterrent
Repellant Field Test: Does it Work? ExcelDriveVideo.
An ultrasonic's sound wave will travel a shorter distance than a lower frequency
sound wave because an ... Ultrasonic dog deterrents emit high-frequency tones.
Keep nuisance animals away with the Bird-X Yard Gard Ultrasonic Animal
Repeller. This maintenance-free ultrasonic device is effective against many pest
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Thanks to "Dog Repellent" don't be afraid of the dogs. While you're walking on
the road if dogs attack you start the "Dog Repellent" and send away dogs.