CB radios, or Citizens Band radios, are a type of two-way radio communication system that allows users to talk to each other over short distances. They operate on 40 designated channels within the 27 MHz band and do not require a license for personal use. CB radios are popular among truck drivers, outdoor enthusiasts, and hobbyists for their ability to provide real-time communication. These radios are typically used for casual conversations, emergency communication, and sharing information about road conditions or weather. CB radios can be found in various forms, including handheld units and fixed installations in vehicles. They are an accessible and effective way to stay connected without relying on cellular networks.