The GMI9745-2C60DB with Electret Condenser Microphone Solder Pads RoHS is a microphone module made by INGHAi. It is designed for use in speech capture, voice recognition, and sound detection applications and is compliant with the RoHS directive. It is a very slim microphone module with a height of only 0.8mm, making it ideal for space-constrained applications. It has a maximum operating voltage of 30V and a maximum operating current of 0.01A. The module is equipped with a dual-channel microphone (2 x 2.2k?) for use in stereo recordings, as well as 4 solder pads for easy installation. It has a high dynamic range performance and is compatible with a variety of audio coding formats (PCM, ALaw, uLaw, IMA-ADPCM, G.729). The microphone also supports frequency adjustment and acoustic noise cancellation. The module is RoHS compliant and has a maximum frequency response of 25kHz.