3.5mm stereo plug to 2.5mm stereo jack FEV-B104By gerry / February 20, 2021 3.5mm stereo plug to 2.5mm stereo jack FEV-B1043.5mm stereo plug to 2.5mm stereo jackA.3.5mm stereo plug to 2.5mm mono jack;B.3.5mm stereo plug to 2.5mm stereo jack;C.3.5mm stereo plug to 3.5mm mono jack.