Stereo audio extension cable 3.5 mm Jack (M) - 3.5 mm Jack (F) - Conductor made of pure oxygen-free copper OFC 99.96%, perfect signal transmission, gold-plated contacts 24K, perfect contact and long life, quality shielding prevents signal interference, shielded metal connectors, external braid protecting the cable, flexible transition between the connector and the cable preventing the wires from sagging.