beyerdynamic Headphone Adapter Screw M5, Screw Adapter, From 3.5 mm with M5 thread to 6.3 mm, Suitable for Beyerdynamic DT-880 Edition/ DT-990 Edition and DT-770 Pro/ DT-990 Pro headphones from version summer 2019 (these have a M5 thread on the 3.5...
Thomann Italia