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

At 11.5 hours , the track is meant to run overnight or during work hours to provide continuous coverage. Critical Limitations and Science

While the theory suggests these sounds create an "unbearable" environment for pests, real-world results are often underwhelming: At 11.5 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. At 11.5 hours

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 At 11.5 hours