Smooth frequency response with gradual presence rise Highly consistent super cardioid polar pattern provides superior gain-before-feedback Electronic low-frequency roll-off compensates for proximity effect Wide dynamic range (117 dB) and low distortion characteristics Very low susceptibility to RFI and electromagnetic hum Advanced cartridge shock-mount system absorbs mechanical shocks and reduces handling noise Built-in pop filter reduces undesirable wind and breath sounds Legendary Shure quality and reliability Add some studio-grade clarity to the live mix. Designed to capture brighter vocals with sparkling accuracy, the BETA 87A brings more crisp to the concert. And the increased presence will have everyone singing your praises.