New, Unused KBX4879 4-Core Upgrade Cable High-Quality Sound Improvement Audiophile Grade Replacement Cable 3.5MM MMCX The low frequencies gain more depth, and the mid-high frequencies provide a greater sense of resolution. In addition, the bandwidth expands, and the impact increases. It enables accurate sound localization and natural, expressive sound, suppressing crosstalk and realistically reproducing even the finest sounds. The overall usability derived from its flexibility and lightness is outstanding, and you can feel the effects of the expanded soundstage and extended low frequencies in terms of sound quality. The gray design has a gentle sense of luxury, and it feels elegant both in appearance and texture! Our re-cabling is compatible not only with Chinese-made earphones but also with earphones from Japanese and other countries' companies. It optimizes the soundstage and the bass pressure balance, reproducing tight bass and clear mid-high frequencies, and maximizing the separation ability. It is possible to bring out the potential of the connected devices to the limit. Due to the unopened condition, we cannot handle initial defects. Earphones Headphones Cable Audio