Linux Hint published a tutorial about how to setup Bluetooth on the Raspberry Pi.

How to Setup Raspberry Pi Bluetooth

Bluetooth is a very popular communication protocol for short-distance wireless communication. If you need to transfer small files between your Raspberry Pi and another device like a laptop, or a smartphone, Bluetooth can also come in handy. In this article, how to setup Bluetooth devices on your Raspberry Pi running the Raspberry Pi OS is explained.

How to Setup Raspberry Pi Bluetooth – Linux Hint