【JSHiFi-SKY】Replacement Cable 2pin 4.4mm Earphone Extension 5-pole 4.4mm Balanced Cable 8-core Silver-plated Hi-Fi Audio Earphone Upgrade Cable Compatible with Chinese Earphones such as KZ (2pin 4.4mm) 【Sound Quality Improvement】By using 8-core silver-plated wire, the low frequencies gain more depth, and the mid-high frequencies achieve further resolution and an overall improved balance. 【Silver-plated Upgrade Cable】Regarding sound quality, it excels in resolution and sound localization, with a particularly good sense of clarity, creating a sense of realism as if the music is being performed right in front of you. 【Soft and Comfortable to Wear】The use of soft and flexible materials makes it easy to handle, and you don't have to worry about the cable getting tangled later. Ultra-lightweight yet durable. The earphone cable is built to withstand long-term use. 【Wide Variety】Available in 2Pin, MMCX, QDC, and TFZ terminals with 2.5mm, 3.5mm, and 4.4mm plugs, allowing for upgrades to a wide range of models. I have only used this cable for auditioning with qdc superior. I am selling it as I have purchased a higher grade. Thank you very much.