<p> <b>Support player: </b><br> - Compatible with SONY TA-ZH1ES, PHA-2A, NW-WM1Z, NW-WM1A<br> And all the 4.4 mm balance pins players. </p> <p> <b>Features: </b><br> - Low frequency control, high analytical power, strong sound density and texture.<br> - The sound field is wide and air is very good. <br> - The sound is exquisite and natural, the tone is full and round, not fluttered, smooth and delicate. <br> - The analytic force is good, the foundation is good, careful, sweet, fresh, thorough, halcyon. - It has a balanced sense, extremely high purity and a clean texture. <br> - Besides, the high frequency details, line sense and sound field are outstanding in terms of clarity, transparency and real sense. </p> <p> <b>Compatible Devices:</b><br> - Compatible with Sennheiser HD25, HD25-1, HD25-1 II, HD25-13 </p> <p> <b>Note:</b><br> - Headphone Upgrade Cable only, Headphone is not included. </p> <p> <b>Package Includes:</b><br> - 1 x Headphone Upgrade Cable </p>