yes its in the phone app
It is a noise cancelling microphone that filters out background noises when you are talking to someone else. It has been in use since the iPhone 5.
yes it is a phone after all
yess it does
Microphone
One of them is a microphone the other is the speakerphone.
To use a headphone microphone on your iPhone without Apple headphones, connect your third-party headphones with a built-in mic through the headphone jack or Lightning port. Once connected, the iPhone should automatically recognize the microphone. You can test the microphone by using voice memos or making a call to ensure the audio input is working correctly. If it's not switching automatically, check your app settings to ensure it's set to use the external microphone.
The left one is the speaker, right microphone
Unfortunately you cannot and must have something to record with if your computer doesn't have a microphone, but you can use an iphone and upload its content and then listen to your computer.
iPhones, as they have calling, sms and 3G capability as well as a microphone and camera.
You will need a 3.5mm Audio Earphone Headphone Microphone Adapter for Apple iPhone 3G to plug in your headphones.
If you buy it from apple (and most other suppliers) earphones, with microphone come free.
It's a microphone, but not one that would listen to your voice. It is a noise cancellation microphone that helps to eliminate background noises so the caller on the other end hears only your clear voice. It's been there since the iPhone 5