OFC Upgrade Audio Cable Cord Line Lead for Sol Republic Master Tracks HD V8 V10 V12 X3 Headphone Blue Cord Length: 120cm, Color: Blue PVC Material with 20 cores and oxygen-free copper(OFC), 250D nylon Better sound range, Strong and solid quality, Better extension of High frequencies for Sol Republic Master Tracks HD V8 V10 V12 X3 Headphone Package included: upgrade cord*1.(earphone not included)