Replacement Audio upgrade HIFI Cable Compatible with Sennheiser HD598, HD620S, HD598 SE, HD598 Cs, HD 400 PRO, HD518, HD598 SR, HD560s, HD599, HD569, HD579, HD505 Headphones extension cords Length: 2.5meters(8.2ft), package include: 1 replacement cable ( there is no headphone include ) Cable Diameter : 4mm,cable material:the inside cable is OFC wire,the outside cable is Braided Tangle-Free cable Connector: 3.5mm Male & 6.35mm adapter to 2.5mm Male(comes with the lock the same as the Original cable) The 2.5mm male on this cable only Compatible with For Sennheiser HD598, HD620S, HD598 SE, HD598 Cs, HD 400 PRO, HD518, HD598 SR, HD560s, HD599, HD569, HD579, HD505 Headphones Replacement Audio Upgrade Cable with 3.5mm male and 6.35mm adapter Compatible with Sennheiser HD598, HD598Cs, HD560s, HD598SE, HD560s, HD400PRO, HD599, HD569, HD579, HD505 Headphones extension cords