CESS 3.5mm 4-Pole (4 Pin) Stereo TRRS Plug Jack Socket Adapter Cables Connectors (LW) (4 Pack) Model: TRRS( 1-Tip/2-Ring/1-Sleeve),Stereo,4 Pole 3.5mm 1/8 inch male plug Soldering type.Use for microphone plug, earphone plug, Audio Video AV PC. Gold plated for maximum signal transfer & durability Material :Copper Compatible cable/wire size up to 4.5mm