Check the listing for details. Original Cable for Sony IER-z1r Replacement M7 M9 4.4mm Plug Balanced Cable. Condition: Open box. Listed at 139.99 USD. Original Cable for Sony IER-z1r Replacement M7 M9 4.4mm Plug Balanced Cable High purity silver has a very high signal transmission performance, can reduce the loss caused by the signal in the transmission process, thus significantly improving the signal transmission rate, so that the sound is also more refreshing and transparent. The cable length is about 120cm/47inch and the cable sheath is a braided hose made of non-polluting PET with good flexibility, elasticity and abrasion resistance, and significant vibration damping to minimize unstable vibrations. The cable is hand braided with high purity single crystal silver core material, the main body is 4 strands, each strand consists of 2 strands of cable braided together, there are 8 strands of cable in total, each cable contains 19 single crystal silver cores stranded together. Upgrade balance cable Use for SONY:IER-M7、IER-M9、IER-Z1R We are committed to focusing on handmade HIFI music balance adapter cables, we ensure the quality at the same time, so that more friends who like high-quality music can feel the fun and enjoyment brought by HIFI.