The Stereo I2S Mic HAT works with all 40 pin Raspberry Pi models. I designed this HAT because I had a need to remotely monitor the audio environment at a data center. The audio information was streamed and fed to analysis to detect numerous conditions in the data center. Uses are only limited by imagination. Here is an article covering how I setup the mic: https://wizworks.net/mic-mccloud-a-cloud-microphone

Audio pickup is amazing! Applications include but not limited to: 1) Environmental/Industrial Monitoring (noise levels) 2) Remote Audio Surveillance 3) AirBnB Party Detection 4) Remote AI/ML Audio Analysis Potential uses limited only by imagination! There is currently no other plug and play module like this for the raspberry pi on the market.