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CR577 Cb Microphone ~ CR-577 *DISCONTINUED* (678)

CR577 Cb Microphone ~ CR-577 *DISCONTINUED*

New Nov 2010. RF Limited CR577 Cb microphone ceramic cartrige power mic with power and tone controls on the back. Ultra-clear sounding mic with low noise audio amplifier. The CR 577 mic comes wired for most 4 pin radios.

**Update March 2015: This item has been discontinued by the manufacture. If more become available we will list them here.

*There is a wiring fee charged if you enter info in the "other wiring" box at right.


*Microphone Type: 1 inch Ceramic Cartridge
*Microphone Sensitivity: -60dB
*Frequency Response: 30 - 15,000 Hz
*Volume (Amp Gain) Control
*Audio Tone Control
*Battery Type: 9V (006P or PP3)

*The CR577 Cb radio mic is wired for most 4 pin radios like Cobra, Uniden, Galaxy, Connex, Magnum, Superstar, Ranger, and Texas Ranger. List your mic wiring in the box at right only if the radio has other than standard 4 pin wiring. ex. (cobra 148, 5 pin) or (RCI 6 pin). There is a wiring fee charged if you enter info in the text box at right. There is also a comment box on the on-line order form for any special instructions. 

CR577 Microphone Brochure 

Mic wiring:
Black Wire = PTT Ground
Shield Wire = Ground Audio
Red Wire = Audio Output
White Wire = PTT TX
Blue Wire = PTT RX

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Our Price: $38.95

List Radio Model if other than standard 4 pin +$12 :

Add 9V alkaline battery. :
   Add battery. $2.95