Connector:3.5 mm Stereo Plug ,
2.5 mm Balanced Plug,
4.4 mm Balanced Plug,
RSA/ALO Balanced Plug optional
connector material:24 K gold plated
length:different length optional
conductor:Silver Plated
Headphone Upgrade Cable for HE1000 HE400S HE560 Oppo PM-1 PM-2,
Planar Magnetic H 1707 ,The headphone side is 2 x 2.5 mm plug