Many people still don’t know the uses of this small hole

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

In fact, the small round hole at the bottom of your phone is a secondary microphone, playing a crucial role in the dual microphone system that helps reduce noise. This noise-canceling microphone is integrated into most modern smartphones. Thanks to this microphone, your calls will be clearer and of higher quality. Without it, your voice wouldn’t be transmitted clearly to the listener.

Thanks to this small hole, even in noisy environments, you can still hear and transmit your voice clearly. Placing the microphone at the bottom of the phone near your mouth helps capture and transmit your voice better, enhancing call quality.