Home > Article > Software Tutorial > What is the small hole next to the Honor v40 card slot?
php Editor Apple will introduce to you the small hole next to the Honor v40 card slot, which is actually an infrared transmitter. The infrared transmitter of Honor v40 can be used to control home appliances such as TVs, set-top boxes, and air conditioners, which is very convenient and practical. In the shortcut panel of Honor v40, you can add a "smart remote control" shortcut to quickly control home appliances. In addition, Honor v40 also supports NFC function, which can easily transmit and interact with other NFC devices. In short, the functions of Honor v40 are very powerful and very easy to use!
When Honor v40 took out the card, I accidentally punched the small hole next to the slot. What is that hole for? Will it affect the phone?
Hello , I am very happy to answer your question~ Dear~ The small hole on the top of the phone is the microphone. Its function is to use directionality to process sound signals and improve the signal-to-noise ratio, so that users can hear the person on the opposite side clearly when there is background noise. When we make a phone call, the other party cannot hear what we are saying due to the noise from the surrounding environment.
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