**********One truth about working with audio, you always need the cable or adapter when you don't have in your toolbox. That's why we choose these terminal-block audio connectors. No soldering required! Use stranded or solid core wire and a small screw driver to create custom wiring jigs. *****Connecting single wires with open cable heads to your 3.5 mm jack. *****It can also be used for CCTV camera applications. *****Black molded plastic construction. *****Gold plated for maximum signal transfer & durability.