CB radio, CB radio UK, or Citizens Band radio, is a type of short-distance radio communication that operates on a specific set of frequencies. Individuals and small businesses commonly use it for communication purposes. CB radios have a limited range, typically around 1-5 miles, depending on various factors such as terrain and antenna height. They are widely used by truck drivers, off-road enthusiasts, and emergency services. CB radios are popular due to their simplicity and affordability. They require no license to operate and are relatively easy to use. However, they are subject to regulations and restrictions set by the Federal Communications Commission (FCC) to ensure proper usage and prevent interference with other radio services.