Done!

Added pdf files for PCB. They are 300% the size, so if you want to use them print at 1/3 size or ask for 100% pdf's and I will upload them.

I added an extra header that can be shunted in case the provided microphone is used.

I do not switch the power off as the current draw is about 10 mA.

Hope it helps,
--
Ion

VA3NOI