With mobile phones in hand and no earphones, how could it be, every other person wearing earphones is walking around with such fun as if he is completely unaware of the world.
But have you ever considered that any type of earphones you use, has extra holes in addition to the speaker But why? Do they have any special functions?
The reason for the extra holes on the earphones is that: Some earphones have the same side and the same hole and some have two. The purpose of these extra holes is to make it easier for air to reach the speaker so that the speaker's curtains can be moved back and forth without disturbing the speed of sound or resonating.
That is, if these holes are not found, you will not hear the voices of the person in front of you completely correct and you will be in trouble, which will affect your ability to hear the most.
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