.The GMI9752U-2C66DB with Electret Condenser Microphone Solder Pads RoHS is a small, low-voltage, surface mount omni-directional condenser microphone module that can be used for acoustic sensing in both consumer and industrial applications. It is manufactured by INGHAi and features a proprietary integrated circuit enabling conversion of an audio signal from the microphone element into a format compatible with analog or digital signal processing systems. The microphone module features an integrated membrane and electret condenser microphone element. It also has an anti-vibration polyamide housing, 2.5 V bias voltage, solder pads, and RoHS compliant. This microphone module is ideal for applications such as smartphones, tablets, automotive, aerospace, home and industrial automation, and medical electronics. It can also be used for acoustically sensing speech, sound, and ambient noise.