Compatible with NW-WM1Z, NW-WM1A, MDR-Z1R, TA-ZH1ES, ZX300A Each core with 19 strands copper wire, Mix the Single crystal copper (OCC) and the Single-crystal silver Gold-plated Connector: 4.4mm 5-Pole male, 3.5mm balanced Female GEEKRIA WARRANTY: If cable stop working within 6 months, free replacement, no question asked Cable Length: 5.1 inches (13CM) ; Package Content: Upgrade cable x 1