Ultra-low power digital XENSIV™ MEMS microphone The IM69D128S is an ultra-low power digital XENSIV™ MEMS microphone, with current consumption as low as 520 μA. Enabled by revolutionary digital microphone ASIC, IM69D128S masters the art of switching between different power & performance profiles without any audible artifacts. The Sealed Dual Membrane MEMS technology provides high IP57 ingress protection at a microphone level.