Headphone adapter 1/8” (3,5 mm) to 1/4” (6.35 mm) Screwable adapter for headphones with M5 thread The jack adapter with M8 thread can also be used for headphones with M5 thread, but only as a plug adapter Fits: DT 770 PRO DT 990 PRO DT 240 PRO DT 770 PRO X Limited Edition