What is a C.B. Radio?
Early model cell phone Good-Buddy.
Only problem, it was a party-line, no privacy.
Citizens’ Band Radio
It's similar to a beeber, but larger.
It's a two way radio, works in the 27. mhz, 11 meter band, very effective for close in communication and in many cases, better than cell phones depending on the venue and they do not require cell towers to operate. In addition, unlike cell phones, they are free to use. Hundreds of thousands of truck drivers use them, among others.
“What is a C.B. Radio?”
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You’re kidding.
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C.B. radio = citizen’s band radio