Have you ever been in a situation where you do hear some sounds but the others don't?…But you're sure you really hear that.
This application: Hearing CheckUp can tell you what happens!

Humans can hear approximately between 20 Hz to 20,000 Hz this range varies significantly with age, occupational hearing damage, and gender.
As we age, some functions in our inner ear lose and we begin to lose our hearing in the very high frequency ranges. We gradually lose our high-frequency
hearing as we age.

In the application, there is a list of tones that go from 8000 Hz to 20000 Hz, so this will help you find out what frequencies you can and can't hear.
Then you can take care of yourself more. Many of us don't really wear proper hearing protection. Even jus listening to loaned music for a long period of time
can permanently damage our hearing.

Take Hearing CheckUp: to check up on yourself !

A list of tones:
8000Hz
10000Hz
12000Hz
14000Hz
15000Hz
16000Hz
17000Hz
18000Hz
19000Hz
20000Hz
21000Hz
22000Hz

If you can't hear any frequency you need to seek a medical advice from a specialist!