The conductor is covered by a soft PUR plastic., 27AWG * 4 strands structure. 

Excellent low and medium frequency detail performance. Sound thick ,mellow and natural. 

Especially suitable for high-fidelity in-ear type moving ring headphones. The value are shown obviously., Soft leather material. 

Excellent shock resistance. Loose and beautiful sense of hearing among all Ranko Acoustics earphone upgrade Line series. 

This line is quite characteristic and worth recommending.