Radio frequencies are a part of the electromagnetic spectrum, which includes various types of waves like light and microwaves. They are used for communication, allowing devices like radios, televisions, and cell phones to send and receive information over long distances. Each frequency corresponds to a specific range of wavelengths, and different frequencies are used for different types of communication. When you tune your radio to a specific station, you are selecting a particular radio frequency. This frequency carries audio signals through the air, which your radio then converts into sound. Radio frequencies are essential for broadcasting news, music, and entertainment, making them a vital part of modern life.