You might've seen recently on social media the new video that is sending the internet into a frenzy!
Thanks to a couple of TikTokers, people all around the world are only just discovering a sound that is inaudible for people over the age of 25.
The Hit Network's Bec, Cosi & Lehmo have finally spoken to an audio hearing expert who has revealed the hilarious reason why only people under 25 can hear this sound!
Take a listen below to find out:
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