This is the threshold of ultrasound, generally inaudible to most adults but well within the hearing range of mice and rats.
The audio includes a "ticking" sound every second as the frequencies switch, which is intended to prevent rodents from habituating (getting used) to a single tone.
Electronic Rodent Repellent | Ultrasonic Mouse Repellent - Orkin This is the threshold of ultrasound, generally inaudible
The track cycles through 15,000Hz, 17,500Hz, and 20,000Hz .
The YouTube video titled is a marathon-length audio track designed to deter rodents through high-frequency sound. Despite the "extreme" branding and millions of views, its effectiveness is a subject of significant scientific and practical debate. Key Features of the "Extreme" Repellent Track The YouTube video titled is a marathon-length audio
At 11.5 hours , the track is meant to run overnight or during work hours to provide continuous coverage. Critical Limitations and Science
These are technically "high-frequency" rather than ultrasonic (which begins at 20kHz). Younger humans with sensitive hearing may find these frequencies highly irritating or even painful. real-world results are often underwhelming:
While the theory suggests these sounds create an "unbearable" environment for pests, real-world results are often underwhelming: