Sanken CS-1e, Condenser Directional Microphone, Ideal for boom pole operations or for mounting on cameras, DC biased condenser, Frequency response: 50 - 20,000 Hz, Sensitivity (nominally at 1 kHz): 63.1 mV/P (-24 dB, 0 dB = 1V/Pa), Equivalent noise level: 15 dB-A, Max. SPL (sound pressure level): 130 dB,