AirPods has a microphone at the bottom left and right of both headphones, which can wake up Siri or make a call. During the call, a set of acceleration sensors cooperate with the beamforming microphone to filter the background noise, lock the user's voice and transmit clearly. The microphone is preset to the "automatic" function, that is, the headset can be used as a microphone on any side; the user can also set the microphone to "always left ear" or "always right ear", which is easy and flexible.
It is worth mentioning that when using AirPods, don't forget the voice assistant Siri, a good companion. Users can wake up Siri to control music playback by tapping on the outside of either side of the headset (for example: play my favorite playlist; skip to Next song, etc.). Adjust volume, make calls, send messages, check weather, turn on navigation, and more. And all this operation does not need to take out the iPhone, as long as you tell Siri with your mouth, AirPods will help you.