A microphone holder for the Moondrop Old Fashioned, allowing you to non-destructively attach a standard 3.5mm microphone to your headphones. The model is designed to be installed on the left side by default. FreeCAD source files are provided for model modification. Reproduction and commercial use must credit the original source.

Additionally, it is also open source under the Mozilla Public License 2.0 (for the FreeCAD source files).