In this video we reveal how a mobile phone actually works, explaining how the device uses radio waves to transmit and receive signals and how it turns your voice into an electronic signal when you speak into it.

This is the third episode in our How it Works series that breaks down the basics of everyday technology.

Future episodes in this series will discuss the inner workings of Wi-Fi, GPS tracking and touch screens, while last week’s episode explored the science behind how a remote control works.