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Amazon.com: Uniden MK393 Replacement CB Microphone For use with PRO510XL and PRO520XL Compact Mobile CB Radios, Equipped with a 4-pin Microphone Connector : Musical Instruments
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Uniden (MK393) - Electret Replacement Microphone for Uniden PRO-500 Series CB Radios, Black, Factory Wired, 4-Pin Uniden PRO-500, Mobile Comm. Microphones
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