iPhone 12 internal earphone

The upper internal speaker in the iPhone, also known as the earpiece, is a small part located at the top of the phone, specifically above the screen. Its main function is to play the call sound so you can hear the person you are talking to. Description of the upper internal speaker: Location: Located at the top of the phone, directly above the screen, often surrounded by a frame or part of the phone's design. Shape: It may be a small hole or a fine mesh for the speaker, differing slightly in design and placement between different iPhone models. Its function: Playing call sound: Used to transmit the sound from the person you are calling to you during calls. Activating the speaker: When the speakerphone is turned on, the sound comes out of this speaker in addition to the bottom speaker. Its importance: It is considered an essential part of the iPhone's calling function, and if it malfunctions, you may not be able to hear the caller's voice.