Jefe PHM917 in good, working condition.
PHM 917 Polar Pattern : Cardioid Element : Back Electret-Condenser Frequency : 80 Hz ~ 15,000Hz Impedance : 250 (Balanced) Sensitivity : -66 dB +/-3dB ( 0 dB=1 V/microbar at 1,000 Hz) Phantom Power Requirement : 9V~52V D.C, 2.0 mA typical Material : Aluminum Maximum Input SPL : 115 dB SPL at 1% T.H.D., 1KHz (Phantom Power) 110 dB SPL at 1% T.H.D., 1KHz (Battery Power)