15000hz, 17500hz & 20000hz Ultrasonic Ultimate Extreme Mouse And Rat | Repellent (11 1 2 Hours)

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.

While the theory suggests these sounds create an "unbearable" environment for pests, real-world results are often underwhelming: Despite the "extreme" branding and millions of views,

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 Electronic Rodent Repellent | Ultrasonic Mouse Repellent -

At 11.5 hours , the track is meant to run overnight or during work hours to provide continuous coverage. Critical Limitations and Science Despite the "extreme" branding and millions of views,

This is the threshold of ultrasound, generally inaudible to most adults but well within the hearing range of mice and rats.

Electronic Rodent Repellent | Ultrasonic Mouse Repellent - Orkin

The track cycles through 15,000Hz, 17,500Hz, and 20,000Hz .