CESS 3.5mm Stereo Balanced Male Plug/Female Jack to AV Screw Video Balun Terminal (jcx) (2 Pack) Model: TRS( 1-Tip/1-Ring/1-Sleeve),Stereo,3 Pole 3.5mm 1/8 inch male plug Screw/solderless type.Use for microphone plug, earphone plug Gold plated for maximum signal transfer & durability Material :Copper 3.5mm Stereo Screw Solderless Type AUX Audio Cables Connectors