Here's how to assemble your BB1 or BB2 boombox. Designed by RD Physics and shared for free under a Creative Commons license.

Bill of materials etc:
https://rdphysics.com/2022/03/17/blue...
3D files: https://www.thingiverse.com/thing:514...
Video explaining the concept of our batteryless boombox:
   • 3D printed portable bluetooth boombox...  
Instructables:
https://www.instructables.com/USB-pow...