Tuesday, November 29, 2011

The Effects of Ultrasonic Bird Repellers on Cats in the House

Ultrasonic pest repellants can affect your cat.Ultrasonic pest repellants emit sounds with a frequency above 20,000 Hz as a way to fend off different animals and pests. Manufacturers of these units claim they are effective and safe for the animal and environment; however, there is varying proof o...

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