SE Electronics SE7 Stereo-Set; Matched Stereo-pair; small diaphragm condenser microphone; polar pattern: cardioid; frequency response: 20Hz to 20kHz; sensitivity: 19 mV/Pa (-34.5 dBV); Max SPL: 136 / 156 dBSPL (0/20 dB Pad); Pad switchable: 0dB, 20dB; requires 48V phantom power; dimensions (HD): 120 x 23 mm;