Discover the critical function of the small hole in your smartphone.
The small hole at the bottom of your smartphone is a secondary microphone. It plays a crucial role in noise reduction, ensuring your calls are clear by minimizing background noise.
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This secondary microphone works in tandem with the primary one to capture and amplify your voice while filtering out environmental sounds.
This dual-microphone system significantly enhances call quality, making it possible to hear and be heard even in noisy surroundings.
Modern smartphones typically feature this noise-canceling technology, demonstrating the importance of even the smallest components in improving user experience.