The KSM313 is a premium bi-directional ribbon microphone for world-class audio and performance. The Dual-Voice design features discrete front-and-rear side sonic signatures for use with amplified instruments or in intimate vocal applications. Hand assembled in the USA with custom components and proprietary Roswellite technology for revolutionary ribbon resilience under extreme conditions. Features Bi-directional polar pattern delivers premier audio with superior off-axis rejection True Dual Voicing tuned specifically for user's for choice of response - warm and full for amplifiers, or swivel for bright and flattering vocals Revolutionary Roswellite proprietary ribbon material replaces traditional foil ribbons with high tensile strength, toughness and shape memory that provides superior resilience at extreme SPLs Custom-sourced components for superior presence, minimized signal loss and maximized output 146 dB SPL / 30 15,000 Hz frequency response ideal for capturing fast transients in vocals, acoustic instruments and concert hall performances Legendary Shure quality and superior construction from hand-assembly of machined steel, silver, gold and aluminum materials Monocle stand mount custom swivel mount for fully versatile placement and orientation Protective wood case included for storage when not in use