Deciding to go for a full digital design for the circuitry, the peripheral is based off of a MEMS microphone and an STM32 microcontroller doing the heavy lifting between it and a USB connection.

Knowles is shipping a digital MEMS microphone claimed to have the lowest power consumption on the market. Aimed at consumer electronics, the multi-mode MEMS microphone offers a high Signal-to-Noise ...

Knowles and Infineon dominate the market for microelectromechanical system (MEMS) microphone chips. Knowles of the U.S. in 2013 was the biggest supplier of packaged MEMS microphones ready for assembly ...

The unit has an on-board MEMS microphone that picks up ambient music ... such as a base for their LED “Mini Mast”, a long RGB array PCB strip. The unit is powered by a 5 V 2 A USB-C connector.