Many people still don’t know what this little hole is for

The purpose of the small round hole on the bottom of the phone:

The small round hole on the bottom of your phone is actually a secondary microphone and plays a crucial role in the dual microphone system that helps reduce noise. This is a noise-canceling microphone that is built into most modern smartphones. Thanks to this microphone, your calls will be clearer and of higher quality. Without it, your voice would not be transmitted clearly to the listener.

Even in noisy environments, you can still hear and transmit your voice clearly thanks to this small hole. Placing the microphone on the bottom of the phone near your mouth will help capture and transmit your voice better, improving call quality.

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