FlexMics? have been chosen for use in premium church installations, houses of congress, court rooms, political debates, corporate boardrooms, universities and many other educational and governmental institutions.Frequency Response: 50Hz to 20kHz ?2dB at 6 inches (15cm)Polar Pattern: Cardioid Sensitivity: 10mV/Pa (-40dBV/Pa)Power Requirements: 48V Phantom, 10mAMax Acoustic Input: 145dB SPLOutput: XLR (pin 2+)Output Impedance: 100 , balanced (50 ea. pin 2 & 3)Min Output Load: 600 between pins 2 & 3Noise: 22dB SPL equivalent (A weighted)Gooseneck: Rigid center with nominal 2.5 to 3 flex on both endsDimensions L x D: 500mm x 22mm (19 x .860 inches)Weight: .3 lb. (137g)