Just pick an age and play a sound. Young kids can hear it, but older men and women don't react lol
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Mosquito Sound Generator - Set your age and play high-frequency mosquito tones that become harder to hear at that age. Adjust your age using the left/right buttons (or ←→ keys). Automatically set optimal frequency based on age (for example: 16,000Hz or higher for high school students and younger). Play or stop sound immediately with "Play Sound" / "Stop Sound" buttons. Real-time display of the currently playing frequency. This is a tool where you can experience the phenomenon where younger generations can hear it, but it becomes harder to hear as you get older. You can also select a color theme.
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