Upgraded KZ ZS10 PRO XThe upgraded KZ ZS10 PRO X earphone is one of a kind with years of careful research, development and improvement. The new headset features enhanced high-frequency performance and custom drivers, meaning a more sensitive transient response, with increased bass impact and better sound clarity. Its also designed with premium material for comfort and the finest finish. 10mm Dynamic Driver+4 Custom Balanced ArmaturesWith the upgraded 10mm dynamic driver, the ZS10 PRO X increases sensitivity of 1KHz compared to the previous model. Four custom balanced armatures provides stunning high-performance with crystal clear highs, smooth mids, and powerful lows while improved hybrid technology ensures increased sensitivity and faster response in your music and voice calls. Classic Alloy Faceplate+Resin ShellMaintaining the classic look of KZ ZS10 PRO, the KZ ZS10 PRO X features an alloy faceplate, complemented with a resin cavity. Two different materials lead to an in