This is the NICEHCK "Oalloy" upgrade cable, popular for its high sound quality. This model supports 2.5mm 4-pole (TRRS) balanced connection and features a 16-core structure that mixes 6N UPOCC single crystal copper and silver alloy, achieving a wide soundstage and high resolution. It is compatible with 2Pin (0.78mm) connector earphones. ・Optimal for balanced output players with 2.5mm 4-pole TRRS specifications ・Rich sound quality with a high-purity 6N single crystal copper + silver alloy hybrid structure ・Improved noise resistance and durability with a 16-core braided structure ・Combines a sense of luxury and robustness with the use of metal parts ・Smooth handling with flexible sheath material, comfortable for long listening sessions ＜Usage＞ ・Connecting to 2.5mm balanced compatible DAPs (Fiio, iBasso, Cayin, Astell&Kern, etc.) ・For improving the sound quality of custom IEMs and re-cable compatible earphones ・Ideal for audio listeners seeking clear highs and powerful lows Brand: NICEHCK Model: Oalloy Plug Shape: 2.5mm 4-pole (TRRS balanced) Connector Shape: 2Pin (0.78mm) Conductor Material: 6N UPOCC single crystal copper + single crystal copper silver alloy Number of Cores: 16 cores (high durability design) Cable Length: Approximately 1.2m 【Notes】 ※ This product is 2.5mm 4-pole (balanced) specification. Please be sure to check if the connected device is compatible. ※ Exclusively for 2Pin (0.78mm) compatible earphones. Cannot be used with MMCX etc. ※ Unused, opened outlet product. ※ Operation has not been confirmed. ※ We cannot provide support for operational defects or quality issues. ※ The package may have some damage or dirt due to being an outlet product. ※ The design and color may differ slightly from the image. ◆Please be sure to read the other notes listed in the profile.◆