Audio-Technica AT8666RSP Microphone Desk Stand with Switch The low-profile AT8666RSP quick-mount desk stand base with user-programmable switch offers three settings: press on/press off, momentary on, and momentary off. The sturdy metal base is equipped with a 3-pin xlrf-type in, and an XLRM-type output connector. It is designed to fit any gooseneck microphone with an XLRM-type output. Fits Audio-Technica case style(s): M9, M11, M23, M26, M27, M34, M35