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Two-way radio often installed in a vehicle; it transmits the human voice over reserved frequencies on a public band.
Unit designed to accept a microphone cord plug.
Button that selects a frequency channel for sending or receiving voice messages.
Liquid crystal display that shows the channel in use.
Device that converts electric pulses into broadcast or recorded sounds.
When this button is pressed, voice messages can be sent from one CB unit to another; when it is released, messages can be received.