Uniden BC645 4-Pin CB Radio Microphone - Compatible With PRO 505 510 520 538, Cobra 19DX & More

Need a new mic for your CB radio?

This is the Uniden BC645, a 4-pin microphone that'll work with a ton of popular models.

It's compatible with Uniden radios like the PRO 505, 510, 520, and 538, and it'll also work with the Cobra 19DX and others that use the same 4-pin electret setup.

It's a genuine Uniden part, brand new in the package.

Just plug it in and you're back on the air, chatting with truckers and skip-shooters.

Simple and reliable.