Headphones for Oculus GO

Everyone who uses Oculus GO VR headset can see weak integrated headphones.
I have decided to build new one from Koss porta pro. I have not dismantlet my old porta pro, instead i have bought pair of replacement headgear drivers for +- 9$, from ali, and used cable from cheap older headphones (you can buy bew cable as well for +- 1,5$).

BOM:
- printed parts (from PETG and ABS) - especially part with driver "clip" works better from ABS. (3$ for material)
- 2x M3x25 imbus +2x M3 nylock (bolts