The rubber at the base of the wiring is partially peeled off on one side, but there is no problem with use. The HA-FX99X is the first Hi-Res compatible model in the XX series. It has been reborn with the "heavy sound" of Hi-Res. The design has been revamped with an aluminum spin & diamond cut design to create a sense of luxury. [Design] Adopts an aluminum spin & diamond cut design to create a sense of luxury. In addition, the "aluminum cut body" reduces external impact and unnecessary vibration. [Heavy Sound] Hybrid diaphragm supports Hi-Res audio playback for the first time in the "XX" series, realizing high-resolution sound. [Sharp, Deep Bass] To achieve clear and sharp sound, a "newly developed high-power neodymium driver unit" is installed to increase magnetic flux density and significantly improve linearity. In addition, by arranging the ducts in a tornado shape inside the housing, a compact design and deep bass reproduction are achieved. [Fit and Sound Leakage Prevention] By surrounding it with an elastomer protector, it fits easily in the ear and provides a stable fit that transmits deep bass without leakage. To achieve "tangle resistance" of the cable, fine grooves are placed on the sheath of the φ2mm thick cable to reduce friction, resulting in a durable and tangle-resistant groove cable.