Earthworks Audio SR3117; condenser microphone capsule for wireless systems; frequency range: 20 Hz - 20 kHz; polar pattern: supercardioid; sensitivity (1 kHz): 6.3 mV/Pa (-44 dBV/Pa); compatible systems: Shure ULX-D / QLX-D / Axient, Audio-Technica 3000 / 5000 / 6000 Series, Lectrosonics HH / HHa, Line 6 V75 / V55; dimensions: 68.58 x 49 mm (length x diameter); weight: 118g