HiFiMan HE4XX
Broken
Owned for 3 years, used Daily
Stress Points- Attachment point between headband and circular plastic part with branding on it.
This part is where the cups and metal adjuster is attached to the headband by glue and two small screws inaccessible without cutting into the headband.
Headband replacements can be bought from HiFiMan or third-party ones from Aliexpress, but they aren't the original design and may require enlarging existing holes in the earcups.