An airport extreme is a special box that helps you use the internet wirelessly. It's like a magic gadget that helps you connect your phone, tablet or computer to the internet without using any wires.
The airport extreme is plugged into the wall and to your internet modem with a wire. It works like a little tower and sends out special signals called Wi-Fi signals. These signals are picked up by your devices with Wi-Fi, like your phone or tablet, and it allows you to use the internet on them.
Think of it like a superhero who helps you use the internet wirelessly in your house, and you don't have to be close to any wires to use the internet. So, you can be anywhere in your house or even outside your walls and still use the internet as long as your device is connected to the airport extreme.
Overall, an airport extreme is like a little helper that connects your devices to the internet wirelessly and makes your online life easier.