SERVICE SET CONNECTING CORD Straight cable 3 m with grommet 3.5 mm jack plug incl. screwable adaptor 3.5 mm to 6.35 mm Fits: DT 440 / DT 440 Edition DT 660 / DT 660 Edition DT 770 / DT 770 Edition / DT 770 PRO / DT 770 PRO HT DT 860 / DT 860 Edition DT 880 / DT 880 Edition / DT 880 PRO DT 990 / DT 990 Edition / DT 990 PRO T 70 / T 90