Beyerdynamic Foam Piece, Foam Disc, Improved surface structure, Black front, Grey back, beyerdynamic no. 910.236, Unit price@+*Suitable for the following headphones:*@+@+, Amiron home/ Amiron wireless, CUSTOM ONE PRO (PLUS)/ CUSTOM STUDIO, DT 1770 PRO/ DT 1990 PRO, DT 440/ DT 440 Edition, DT 511/ DT 531, DT 660/ DT 660 Edition, DT 77/ DT 770 old/ DT 770 Edition/ DT 770 M/ DT 770 PRO/ DT 770, PRO HT/ DT 790/ DT 797, DT 811/ DT 831/ DT 860/ DT 860 Edition/ DT 880/ DT 880 old/ DT, 880 Edition/ DT 880 PRO/ DT 880 PRO HT, DT 911/ DT 931/ DT 990/ DT 990 old/ DT 990 Editio/ DT 990 PRO, HS 200/ HS 300, MMX 300/ MMX 300 (2nd Gen), T 70/ T 70 p, T 90