Animals Channel
Showing posts with label
Ultrasonic
.
Show all posts
Showing posts with label
Ultrasonic
.
Show all posts
Tuesday, November 29, 2011
The Effects of Ultrasonic Bird Repellers on Cats in the House
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Ultrasonic pest repellants emit sounds with a frequency above 20,000 Hz as a way to fend off different animals and pests. Manufacturers of ...
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