Franzis Bat Detector Hard Case - Remix

I modified the case, made it a bit longer, for more room inside, added holes on base for M2 screws, surround to hold speaker in the center of the grill and added 3mm hole in top for a Power LED.
Kit from Amazon - under £20.
https://www.amazon.co.uk/gp/product/3645652760/
I have added a Tube externder for the Mic, as i was getting feedback when volume turned up