Using the ultrasonic sound produces a discomforting dog but not harmful. High frequency sound audible to dogs but not to humans. It helps stop the approach of unfriendly, aggressive dogs

Anti Dog Repellent Sound | Ultrasonic Dog Repellent | Stop A Dog Barking | Dogs Away #stopdogs


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#ultrasonictesting
#highpitch
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#antidogrepellent
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#antidogsound
#highfrequencysound
#22Khz

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