Ready to add audio to your next project? This small breakout board couples a small electret microphone with a 100x opamp to amplify the sounds of voice, door knocks, etc loud enough to be picked up by a microcontroller's Analog to Digital converter. Unit comes fully assembled as shown. Works from 2.7V up to 5.5V. Project description, more information and ordering can be found at https://www.sparkfun.com/products/9964 Example PIC ADC Code: /datasheets/BreakoutBoards/Mic-Testing-v10.zip Datasheet: http://focus.ti.com/lit/ds/symlink/opa344.pdf Datasheet: http://dlnmh9ip6v2uc.cloudfront.net/datasheets/Sensors/Sound/CEM-C9745JAD462P2.54R.pdf Example Audio LED control project: http://negativeacknowledge.com/2008/06/11/final-lightbar-controller/