1-10PCS KY-037 Sensitivity Sound Detection Module DC 4-6V LM393 Microphone Detection Module For AVR PIC This sound detection module features the LM393 comparator and a electret microphone for detecting sound intensity.It operates on a DC voltage between 4V and 6V, making it compatible with microcontrollers such as AVR and PIC.The module outputs a digital when sound exceeds a set threshold, which can be adjusted via an onboard potentiometer.It includes both digital and analog output interfaces, allowing flexibility in processing.The compact design and low power consumption make it suitable for various electronic projects involving sound sensing and control applications. Compatibility Advisory: This product is not affiliated with the manufacturer.Brand mentions are for fitment reference only.