Citizen band (CB) radios are short-range communication devices that allow users to talk to one another without the need for a license. Operating on 40 channels within the 27 MHz band, they are commonly used by truck drivers, hobbyists, and outdoor enthusiasts for real-time communication. CB radios are popular for their simplicity and accessibility. These radios can be used in various settings, including vehicles, homes, and outdoor activities. They are equipped with features like microphones and speakers for clear audio, and some models include additional functions such as weather alerts and emergency channels.