1. Usefulness: Suitable for Beyerdynamic MMX300 2nd generation headsets, and also compatible with other headsets using a 3.5mm connector. It effectively eliminates the skin effect that impacts high-frequency audio transmission and features a rigorous production process. 2. Wire Control: Equipped with wire control functions for adjusting audio levels, a microphone mute switch, and a side button for mobile phone interaction, allowing you to pause, play, or skip tracks. It's an ideal spare or replacement for damaged or missing cables. 3. Twisted Pair: The twisted pair design twists the cold and hot signal wires to counteract magnetic flux generated by current, reducing signal loss. OFC copper wire offers good conductivity, a bright surface, and high corrosion resistance, enhancing headphone resolution and separation. 4. Restore True Sound: Minimizes the impact of current noise caused by external magnetic flux through the connection cable, resulting in more transparent, natural, and beautiful sound. Restore true audio for a different listening experience! 5. Durable in Use: This headphone cord is built to withstand wear and tear. The cable boasts high tear strength and abrasion resistance for extended longevity. With a length of 1.3m / 4.3ft, it's sufficient for gaming, listening to music, and watching movies.