Balanced signal transfer and minimum interference for crystal clear audio ^^ Heavy OFHC continuous cast copper, silver matrix conductors 14WG for the best signal transfer ^^ The custom helix design and minZ helix construction protect from RFI and EMI noise for the cleanest transfer medium possible ^^ Gold-plated smooth surface male input / output ^^ 300mm ( 11.8 inch) in length with super-soft HD polymer insulation