High-end cabels designed for Astell & Kern portable audio players with special cable construction Next. Crystal Cable Next sets new sonic standards. The superb conductivity, shielding and high-tech insulation materials used by Crystal Cable are perfect for the low-signal level, low-power applications typical in portable audio systems. They make the most of every last little bit of signal, while dedicated designs combine their inherent flexibility with skin-friendly outer sheathing to set new standards for unobtrusive comfort. Cable length: 120 cm. Connectors: Custom IEM 2-Pin and 2,5 mm balanced Jack. Structure: aramid / silver and gold alloy / silver plated copper, silicone.