Find out who is calling without looking at the smartphone? It works with Siri!
When you are out and about, the smartphone is usually in your pocket or handbag and the AirPods in your ear. When the cell phone rings, you'll have to dig it out of your pocket to see who's calling. With the "announce calls" function, however, the Siri voice assistant announces the caller - and the decision is up to you whether you have to take the iPhone out of your pocket at all ...