Adafruit Electret Microphone with Built-in Amplifier

<P>The <STRONG>Adafruit Electret Microphone Boards </STRONG>feature a built-in microphone and use specialist microphone amplifier chips. Choose between automatic gain control (AGC) and adjustable gain versions. Suitable for purely analogue applications such as sound recording or digital applications attached to a microcontroller and suitable software. For example, use Adafruit's FFT library to extract frequency information to make a sound visualising display. Please see the individual product pages for links to Adafruit's tutorials.</P><P>If you want to connect one to a Line Input then use a blocking capacitor of between 1 and 100&micro;F unless you have a differential amplifier or it already has its own blocking capacitor. Blocking capacitors aren't necessary when connecting to an analogue to digital converter of an Arduino for example. </P><P>Supplied with a fully assembled amplifier board, and a strip of 0.1in. header pins for you to solder on if required. </P>