Kmise A7355 Audio AV 6.35mm 1/4" Mono Male Plug to 3.5mm 1/8" Stereo Female Jack Adapter, 2 Piece Convert your 1/4"(6.35mm)mono microphone/headphone to 1/8"(3.5mm) Mono 6.35mm Mono in, 3.5mm Stereo out For Amplifier, VCD, DVD, Radio