So far you didn't know what this little hole is for in your phone, the reason will leave you speechless.

So far you didn't know what this little hole is for in your phone, the reason will leave you speechless.

Everyone wants to have a good technology device, and when we talk about cell phones, the only name that comes to mind is iPhone. Made by the world's leading and most successful company Apple iPhone is already the world's best-selling mobile phone. iPhone technology is far away from rivals [...]

Made by the world's leading and most successful company Apple iPhone is already the world's best-selling mobile phone.

The technology of the iPhone is far from the rivals of Apple, and an amazing technological feature is also the small hole near the iPhone camera, which you may not have known what it is for.

You must have noticed the little hole near the camera behind your iPhone. That hole is actually a secondary microphone.

But this microphone is not for voice recording, it's about reducing noise.

When you talk to someone on your cell phone, there may be background noises like cars that make communication more difficult. This microphone is to filter these noises out of the call, using the advanced voice system on iPhone 5 and the patterns behind it. And this little hole gives you a clean call experience.

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