Is that a micro zoomie or are plugging mics in?
Micro zoomie using built in MEMS mic elements. Would be especially cool to be able to plug in other mics, but far easier for them to manage as proprietary walled garden.
I've not seen one yet, half tempted to see if a DPA miniature element (omni or cardioid) can be hacked in. The MEMS is probably 5V power which would work, not sure the available current though.