Campfire's especially good standard IEM audio cable with four of conductors pure copper. With 2.5mm TRRS 4-Pole Balanced termination for use with high-resolution portable digital audio players. Compatible with Astell&Kern, Lottoo and many other excellent players.
Custom Beryllium Copper MMCX eliminates the traditional shortcomings of the connection and harnesses all of its benefits. Beryllium Copper provides a robust mating mechanism, one that is typically made from soft brass. This selection of a harder material extends the life of component and the earphone.
Especially good standard IEM audio cable
Pure copper conductors
2.5mm Balanced termination for use with high-resolution portable digital audio players