|
|
|
|
|
|
by ipnon
604 days ago
|
|
|
Yes you can even adjust the frequency based on which demographics you want to keep from loitering. There is a predictable hearing loss curve for the highest frequencies. You could set it to 20kHz to keep little kids away, or even go as low as 16kHz if you want to keep everyone younger than about college age away. This also happens to be an easy way to test the degree of your own hearing loss compared to your age group. |
|
|