The Bogen MGN19A is a push-button, omni-directional, dynamic microphone designed for quality sound installations. The microphone is extremely rugged and reliable and is designed to stand up under the most strenuous handling conditions to provide years of dependable service. A smooth wide band frequency response with intentional boost above 1.5kHz gives a natural, crisp, highly intelligible sound. The microphone is furnished with a 18.15" fully flexible gooseneck and mounting flange. Omni-directional pickup pattern Rugged, reliable design for quality long-term use under strenuous handling conditions 500-ohm impedance +/- 30%@ 1kHz Frequency response range of 70 Hz - 15 kHz Sensitivity of -70 dB +/- 3dB Push-to-talk switch on MIC housing