https://www.sparkfun.com/sparkfun-sound-detector.html
SparkFun Sound Detector - SparkFun Electronics
SparkFun Electronics is an online retail store that sells the bits and pieces to make your electronics projects possible.
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https://www.popsci.com/spidey-sensor-spider-leg-organs-inspire-new-sound-detector/
Spidey Sensor: Spider Leg Organs Inspire a New Sound Detector
Spiders can detect sound and movement using slits in their legs, and scientists devised a new sensor that works in a similar way.
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