# Electret Microphone - 20Hz-20KHz Omnidirectional

**Type:** Product page · **SKU:** ADA1064 · **Brand:** [Adafruit](https://core-electronics.com.au/brands/adafruit-australia)
**Page:** https://core-electronics.com.au/electret-microphone-20hz-20khz-omidirectional.html ([markdown](https://core-electronics.com.au/electret-microphone-20hz-20khz-omidirectional.html.md))

## Retired product

This product is retired and no longer available for purchase. Search the catalogue for an alternative.

## Description

This electret capsule microphone is the same one are used in Adafruit's great microphone amplifier board. It contains a small vibrating element that will output a few milllivolts peak-to-peak. You will need an op-amp to amplify the signal, some chips are designed with the amplifier built in in which case you can wire it up directly.
 
 This is an "omnidirectional" microphone, with -44dB sensitivity, and has 20-20KHz frequency response. You can plug it into a breadboard or perfboard or solder wires to the little wires sticking out the back.
 
 Check out OpenMusicLab's great tutorial on Electret Microphones for a deeper look at how these sensors work. If you need an amplifier board, [see Adafruit's fully-assembled and tested mic amp board with adjustable gain.](https://core-electronics.com.au/electret-microphone-amplifier-max4466-with-adjustable-gain.html)

## Technical Details

[Electret Capsule Microphone Datasheet](https://cdn-shop.adafruit.com/datasheets/CMA-4544PF-W.pdf)

Check out OpenMusicLab's great tutorial on Electret Microphones for a deeper look at how these sensors work

 ![](https://core-electronics.com.au/media/wysiwyg/resources/rohs_icon.jpg)

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/1/0/1064-02.jpg)