CESS 3.5mm Stereo Balanced Female Jack to AV Screw Video Balun Terminal (LW) (4 Pack) 3.5mm Balun Terminal Jack Model: TRS( 1-Tip/1-Ring/1-Sleeve),Stereo,3 Pole 3.5mm 1/8 inch female jack Screw/solderless type.Use for microphone, earphone, audio video AV PC. Nickel plated for maximum signal transfer & durability Material :Copper