
Sennheiser adapter 3.5mm screw type socket to 6.35mm jack plug - 543684
Adapter jack 6.3S - jack socket 3.5S, gold, screwable, suitable for: e.g. HD 25, HD 2 ALUMINIUM, HD 26, HD 215, HD 280 Pro, HD 280 Silver, HD 429, HD 439, HD 449, HD 465, HD 485, SH 230.