What is the purpose of Airplane mode?

What happens when you don't switch to Airplane mode? Here is why airlines ask you to put your phone in Airplane mode during a flight.

Finally found a way to Schedule Airplane … - Apple Community

Turning on airplane mode can help phone charge faster

What is the purpose of Airplane Mode? Is it more about science and safety, or is it about respecting other travelers? : r/AskReddit

What is Airplane Mode and When Should You Use It? - The Plug - HelloTech

Airplane Mode Secret Tricks You Must Know

What is airplane mode?

What is airplane mode?

What exactly does the airplane mode do in the device? - Quora

What does Airplane Mode Do, Its Importance & How to Use it

2 Ways To Use Mobile Data in Flight Mode on Android

Airplane mode - Wikipedia