ADD A ROGER BEEP TO ANY CB OR HAM RADIO USING THE ROGER BEEP MIC, THAT CAN ALSO WHISTLE DIXIE ;-) - YouTube
RF Limited (EC-2024U/D) - Power Microphone with Turbo Digital Echo and TalkBack, Up/Down Controls, Black, Factory Wired, 6-Pin Uniden/Magnum, Mobile Comm. Microphones