What is the hole in the horizontal screen of the phone used for?

time：2024-09-25 15:02:37 Gadget Insights

What is that little hole on the top of the phone?

The small hole on the top of the mobile phone has the following functions:

1. Main microphone hole: It mainly collects the sound when calling, usually located at the bottom of the phone. Its function is to record sound, which is the main source of call sound, but noise is also included.

2. Auxiliary microphone hole: Also known as noise-canceling microphone hole, it is mainly used to collect noise from the outside environment. The noise is reduced by subtracting the audio signals of the main and auxiliary microphones, so as to achieve clearer voices and improve the quality of calls. The location of the auxiliary microphone jack is generally on the top or back of the phone, or even next to the headphone jack.

3. Card slot: used to install the phone card, generally at the side end or upper part of the mobile phone.

4. Headphone jack: Plug in headphones for listening to songs and watching movies, generally on the top of the mobile phone.

5. Speaker hole: Generally designed at the bottom of the mobile phone, it is used to play music or videos.

So, if you notice a small hole on the top or bottom of your phone, they could be the main or secondary microphone holes to reduce background noise and improve call quality.

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