Radio protocols are standardized rules that govern how data is transmitted over radio waves. They ensure that devices can communicate effectively, managing aspects like frequency, modulation, and error correction. These protocols help maintain clear communication between different devices, such as walkie-talkies and cell phones. Different types of radio protocols exist, each suited for specific applications. For example, Bluetooth is designed for short-range communication, while Wi-Fi is used for wireless internet access. By following these protocols, devices can connect and share information reliably, enhancing user experience and functionality.