I have combined @toolmantim313's works and made it a compact, single model to print (still support-less) while rearranging the controller holders and reinforcing the headset part. Don't exactly know if the reinforcement was needed, just felt like it's better safe than sorry 😅

The printed model is quite sturdy, I don't have any doubt it'll hold up, but please check your filament and print quality thoroughly before hanging your expensive headset to the wall 😉

The screw hole plugs are finicky, you may need a little dab of glue to fix them.


Please note:
I have done a redesigned version (to address the proximity sensor), but since I would like to test (and use) the new version and my A1 sadly is making a lot of trouble for the past weeks ... 
 

Version 1.1 is available here 

(mainly extra large opening for the proximity sensor)