Black transparent line compatibility line control function with volume adjustment keys and nbsp;
Rubber oil shells feel better.
Material: high permeability transparent PVC covered with glue, black PVC covered with glue & nbsp; core 20 * 0.05 oxygen free copper wire + 250D tensile breaking nylon wire, shielded core, no auscultation effect.
Inserting pin technology: copper parts (not cheap stamping parts), parts are gilded and then injection molded, non-disposable barrel plating or chemical bleaching plating.
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