Scientists have debated the purpose of the ultrasonic vocalizations (USVs) produced by rodents since the discovery of these sounds in the 1950s. There’s a wide research consensus suggesting USVs are a ...

For decades, scientists believed that mice used ultrasonic vocalizations (USVs ... might one day manipulate nanoparticles using just sound. The life of a mouse isn’t an easy one.

But do these devices actually work? Ultrasonic pest repellers are devices that plug into an electrical outlet and, theoretically, emit a sound well outside of the frequency detectable by human ears.

Different frequencies repel different animals 5-Mode Animal Repeller for Choosing: The raccoon deterrent has 5-level to adjust, Level-1: Ultrasonic horn alarm sound drive, Level-2: The ultrasonic ...

Ultrasonic pest repellents, such as Haycone Indoor Ultrasonic Repellent from Amazon emit sound waves at frequencies higher than what humans can hear, typically above 20 kHz. According to Nicole ...