This is a electret microphone amlifier module equipped with MAX9812 amplifier IC. Adopted voltage expansion technology enable this module has 3V and 4-12V wide voltage input perfect for mic audio amplification.

Note:
The 3V and 4-12V voltage input port is at two diferent position which is already marked on the PCB board, please note this when you use it.

Internal Fixed Gain: 20dB(100mW)

Package include:
1x Module (with two terminal , not welding )
1x 2P Power cable
1x 3P Audio output cable (20CM)

• MAX9812 Electret microphone amplifier module
• Can connect with 2 mics with On-board 3.5mm audio jack and mic solder joint
• Wide voltage input supporting 3V and 4-12V
• Come along with dupont socket, 3p audio output cable and 2p power cable, just solder them, then easy to connect
• Module Size:50X20mm/1.97X0.79inch(L*W)

MAX9812 Electret microphone amplifier moduleQianson