ITEM NAME:3.5mm TRS Audio Female Jack Solder Connector 3 Pole Stereo Headphone Plug #gib Store Home Promotion Hot Item Add to Fav.Interface type: 3.5mm TRS welding female base. 1 X 3.5mm TRS Audio Female Jack Solder Connector. DIY welding various audio extension wires, earphone extension wires. Auto AUX audio lines and so on can be connected by soldering.