... lighting line. UTP, Unshielded Twisted Paired, RVS twisted copper wire, PVC insulated twisted pair cable Specifications1.CCC certificate.Copper-core PVC insulated twisted pair cable RVSTypeRVSColorRed mixed blueRated voltage300 ... by the amplifier of the audio signal processing. UTP, Unshielded Twisted Paired,RVS twisted copper wire, PVC insulated twisted pair cable RVS