The Rha-0 in-ear custom-made headphone professionalaudio transmission cable (limited production) is 1.25 m in length. 

The transmission conductor consists of 6N high-purity OCC single crystal gold-silver alloy wire.   

It is the one of the most expensive professional headphone audio cables in the world. Built with extreme high quality rhodium-plated pins and stereo signal connectors, 

super wear-resistant plugs and ultra-low impedance features. 

All those ensure natural, clear sound with exordinary transparency. Coupled with Ranko's exclusive patent of ceramic suspension damping technology (CDST) , 

it cable could achieve a resonant frequency of less than 0.05 Hz and with almost 0 damage to the sound. The delicately built cable is truly a  rare beauty.