How does Wi-Fi transmit data through the air to your devices?

Wi-Fi sends messages through the air to your devices by using radio waves, like how a whistle can carry a message across a playground.

Imagine you and your friend are playing a game where you pass notes under the table. You write a note, tap it on the table, and your friend gets it, fast and without being seen. Wi-Fi is kind of like that, but instead of tapping a note under the table, it sends messages through radio waves.

Your router (like a teacher in the class) uses radio waves to send messages out. These are like invisible notes traveling through the air. Your phone or tablet listens for these radio waves and receives them, just like your friend hears the note when you tap it.

When you click on a link, watch a video, or chat with someone online, your device sends a message back using the same radio waves. It's like your friend tapping a reply under the table!

Wi-Fi keeps sending these invisible notes so you can use your devices anywhere in the house, just like how you and your friend can play the game even if you're on different sides of the room.