I suggest scaling the “hanger” down to 95/90% on the Z axis if it doesn't fit in your build area, don't worry, it will not compromise the headphone stand. Printed it with .2mm layer height with supports enabled, i suggest to not turn on brim as it will make it harder afterward in the post processing when you'll need to glue the “hanger” to the base. Printed it with both PLA and PLA+, both came out pretty good