We aim to manually trigger multiple (several within a minute), short recordings (only a few seconds long) manually, for bat point counts.

We are thinking of using the Audiomoth (or the micromoth, for that matter) and powering the device up and down does not seem to be an option due to the long times needed for opening and closing files on an SD card (right?).

How could manual triggering work, could we have a simple switch to the microphone, or somewhow use the triggering mode?