Question

What is the hearing range of human ears?

For a human with no hearing disability, the lowest pitch that we can hear is as low as $20Hz$. On the other hand, the highest pitch we can hear is $20,000kHz$.
Note: All animals have their audio range. Let’s discuss the interesting case of bats. The audio range of bats is from $9kHz$ to $200kHz$ . Bats use very high-frequency sound to navigate, this is called echolocation. Echolocation enables the bats to see even in the night, so bats can efficiently hunt for prey even in the dark.