Suitable for: ND - D6 upgrade cable provides 2-pin connector. It can be purchased in a standard 2-pin 0.75 mm (QDC) connector option, making the cable compatible with most IEMs.0.75MM (QDC) PIN COMPATIBILITY: THIS CABLE IS COMPATIBLE WITH KZ ZSN/ZSN PRO/ZS10PRO/AST/AS16/AS12/ZSX/ZSN PROX/ZAX/TRN VX/ Zas/DQ6--CCA CA4/C12/A10/CA16/C10 PRO—TRN ST1/MT1, QKZ- ZXN/ZXT/AK6 Pro, etc.4-Core OFC Detachable Cable: This upgraded cable is made of 4-core oxygen-free copper material with PVC wire skin to provide a natural and detailed sound, especially at low and mid frequencies. It brings the sound to life and gives you a truly impressive listening experience.TYPE -C PLUG: This upgrade cable comes with a Type C jack and is compatible with most of the latest smartphones that use a Type C port. Designed for phones, tablets, laptops, and other devices with a Type-C interface, it enhances the signal path to deliver a superior audio experience.HD Microphone: It is equipped with a high-quality inline microphone that is convenient for making calls and recording on the go. The microphone module also has a single on control, so you can easily answer the call (Pickup/Hangup) while listening to music easily pause/play, play the last song with 3 clicks and double tap to play the next song. It is sturdy, durable, compact, and convenient.Improved Sound Quality: This upscaling cable improves the sound quality by increasing the headphone resolution of the headphones and expanding the frequency range. This results in a richer listening experience with more musical detail, detailed and natural sound, and audio clarity. The sound becomes mellow and transparent, making the listening experience stand out.Reliable and durable: ND-D6 cables are the affordable and valuable cables you need for everyday use. Quality is our top priority, and rest assured that the durability of the D6 is as you would expect.