Electronics: Fun & Fundamentals — The Eclectic Electret Microphone - Make:
Amazon.com: Adafruit Electret Microphone Amplifier - MAX4466 with Adjustable Gain [ADA1063] : Electronics
Q. Are back-electret mics any good?
Amazon.com: uxcell 8Pcs Cylindrical Electret Condenser Microphone Pickup 85dB Through Hole Mini Electret Condenser Mic with 2 Pins 10x7mm for PCB : Musical Instruments
electret microphones | Open Music Labs
MAX4466 Electret Microphone Amplifier Adjustable Gain Breakout Board M – Aideepen