CB radios, short for citizen band radios, are two-way communication devices that operate on a set of 40 channels within the 27 MHz frequency range. They are primarily used for short-distance communication, typically within a range of a few miles, and are commonly employed by truck drivers, off-road enthusiasts, and outdoor adventurers.
CB radios offer several advantages, including their ease of use, affordability, and ability to facilitate communication in areas with limited or no cell phone coverage. They have played a significant role in various industries and activities, such as transportation, construction, and outdoor recreation, enabling users to stay connected and exchange information.