The technology that powers mobile phones is similar to the technology behind radios. Essentially, your phone’s wireless antenna sends and receives unique radio signals transmitted via a specific frequency range. These signals used to be broadcast using large cell towers, but advancements in technology have made it more common for phones to operate via wireless antennae that transmit across a smaller area. When you speak, your phone converts your voice into digital data that can be easily transmitted over your network. As technology improves, phones use this same technique to transmit more and more information, from text messages to video clips to entire songs.