CB Radio Microphone 4-Pin Cobra PR240 PR375 PR4200 PR3100 / Uniden / Galaxy Ham Radio. CB is suitable for Cobra handset: For Cobra: PR240 PR245. Cobra walkie-talkie microphone in hand. 25 LTD CLASSIC,29 LTD CLASSIC, 21 LTD WX, 25 LTD WX.