Audiophile Connection Cable. Very high-grade balanced connection cable for two-sided cabeling with conductors made from OCC 7N copper. Electric screen over complete cable length, Textile-braided, black. On headphones side with 3.5 mm jack plugs with proprietary beyerdynamic locking mechanism. On player side with 2.5 mm 4–pole jack plug for balanced wiring. Gold-plated contacts. Length: 1.40 m. Fits: T 1 (2nd Generation), T 5 p (2nd Generation), Amiron home.Compatible with balanced mode outputs of: Astell&Kern A&ultima SP1000, Astell&Kern KANN, Astell&Kern AK 70, Astell&Kern AK 240, Astell&Kern AK 300, Astell&Kern AK 320, Astell&Kern AK 380, Astell&Kern AK Amp, Astell&Kern XB-10, FiiO X5 Mark III, FiiO X7 Mark II with AM3A, Onkyo DP-X1, Onkyo DP-S1 and all other devices supporting the a.m. Wiring.