Sound sensor module - High Sensitivity Microphone Decector For Arduino Module AVR PIC.
Size: 32mm x 17mm x 15mm
Working voltage: DC 4-6V
Main chip: LM393 comparator
Microphone: Electret condenser
Usage : Adjust variable resistor for desired sensitivity.
If volume is greater, output pin goes low.
PACK OF 1 IN ANTI STATIC PROTECTION