CUI Devices CMM-3424DT-26165-TR MEMS Microphone is a digital Pulse-Density Modulation (PDM) microphone with an IPX7 rating for protection against moisture and liquid ingress. This MEMS microphone features a top port location, omnidirectional directivity, and a -40°C to 100°C operating temperature range. The CMM-3424DT-26165-TR microphone operates at a 26dB sensitivity rating, 65dBA noise ratio, and a ±1dB sensitivity tolerance. This MEMS microphone comes in a compact 4mm x 3mm x 1mm package size.