Uniden BC645 4-Pin Microphone Replacement for CB Radios, BC645
• Electret condenser replacement microphone for CB radios; wired for Uniden(R) 4-pin radios;• Factory replacement for microphone that comes with Uniden(R) PRO505XL; will also work with Uniden(R) 4-pin radios PRO505XL, PRO510XL, PRO520XL, and PRO538W;• Built to be trucker tough;• 8-ft. flexible, coiled cord;