Perhaps you should talk to one of your local expert ham friends...

The on-line info looks pretty complete to me... ??
Don't know what you mean by "Built-in"??
Pick up the microphone, push the PTT button & talk. Let go and listen...

--
Steve N, K,9;d, c. i My email has no u's.


"Rafael Lopez" wrote in message
...
I just got this radio last night. It's supposed to have a built in
mic. How can I test the mic? What button do i push?
I already read the online manuals for it but it doesn't even tell you
how to do the most simplest things.


http://support.radioshack.com/produc...Radios&Reuse=N

thanks