Adafruit Silicon MEMS Microphone Breakout - SPW2430 The SPW2430 is a small, low cost MEMS microphone with a range of 100Hz – 10KHz. Integrated 3V voltage regulator (the microphone requires 3.3V DC) and filter capacitors. No additional opamp is included, the output peak-to-peak voltage has a 0.67V DC bias and about 100mVpp (peak-to-peak) when talking near the microphone. The peak-to-peak can be as high as 1Vpp if there's a very loud sound.
Product Dimensions: 15.8mm x 14.1mm x 2.9mm / 0.6" x 0.6" x 0.1"