Use the audio consistently for several nights. Ultrasonic repellents are most effective as a "slow burn" deterrent rather than an instant fix.
The extended duration is the most critical feature. Short bursts of sound are rarely effective because rodents are adaptable; they will simply hide until the noise stops. An 11.5-hour loop covers the entire duration of their peak nocturnal activity. By maintaining constant pressure through the night, the audio disrupts their ability to forage, communicate, and nest, eventually forcing them to seek a quieter habitat. Best Practices for Use Use the audio consistently for several nights
The volume needs to be high enough to fill the room, but be mindful of pets. Dogs and cats can hear these frequencies and may become stressed. Short bursts of sound are rarely effective because
Mice and rats have a much broader hearing range than humans, extending well into the ultrasonic spectrum (up to 70–90 kHz). Best Practices for Use The volume needs to
These frequencies transition into the ultrasonic range. To a rodent, these sounds are akin to a loud, relentless siren. Because rodents use sound for communication and predator detection, this "acoustic stress" makes the environment feel unsafe and uncomfortable. The Benefit of 11.5 Hours