This 3.5mm / 1/8″ Stereo Audio +  Mic breakout is an easy method of getting to those fine wires inside your audio cable without having to cut a cable or solder. This adapter is labeled and makes it as easy as possible to work with. 3.5mm is the most commons size, used in most headsets and basic audio devices. Simply connect your cable and use the screw terminals to get the stereo audio and microphone wires to wherever you need them!