Introducing a small microphone amplifier module, which can realize the circuit amplification of the capacitive microphone (column microphone pickup). The output of the board can be directly connected to the audio input of the audio, or the audio input of the computer to realize voice chat or voice. Zooming in is actually a complete function of a microphone.

Board parameters:

1, power: DC 2.5-9V
2, input: the board is equipped with a capacitive microphone (not installed when the actual shooting, will be installed when shipped, sensitivity 52D)
3, output: the board is equipped with an audio output interface
4, board size: length 14mm width 12mm