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8cm 3.3” Speaker Box With B...View Instructable »
There should be a video of it working linked to in the instructable.https://youtu.be/2xoqPEg8OkI
Arduino Controlled Sound Re...View Instructable »
I used the arduino software and android application to build myself this;The difference is I've used a 10 watt LED along with 3 MOSFETs to produce a brighter light.