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Do ultrasonic pest repellents work?
They often work better ... of ultrasonic repellents. Limited Range: The sound waves do not penetrate walls, making it necessary to use multiple units such as a 6-Pack Ultrasonic Pest Repeller ...
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Do Ultrasonic Pest Repellers Really Work? Experts Weigh In
“Do ultrasonic pest repellers actually work?” Read on to see what pest control experts say about these devices and if these ...