Module is a 1U tile.
No info about availability.
Electret microphone pre-amplifier 1U Tile
E-TRET is a pre-amplifier for electret microphone elements. It can be used with our Electret Capsule (M1), or other electret sensors.
There are two jacks: electret input and audio output in addition to a single gain knob.
1 Users are observing this
These merchants probably sell this module. Huh?