XLR female Holes to 6.35mm 1/4 inch Stereo Jack Plug Adapter Converter Connection A: 3-Pin XLR Jack (Female); Connection B: 6.35mm 1/4" Stereo Jack (Female) Great for use in the music industry, microp more→hones, DJ's, PA Systems, instruments, plus many other applications This adapter is primarily used with professional audio and video equipment This adaptor is designed to adapt a balanced phone plug to an XLR output