| Type | Back Electret Condenser Microphone | |
| Polar Pattern | Cardioid | |
| Frequency Response | 50Hz-18KHz | |
|
Output Impedance |
200Ω±30%(at 1KHz) |
|
| Sensitivity | -45dB±3dB (0dB=1V/pa at 1KHz) | |
|
Power Supply |
48V D.C.&1.5V Battery |
|
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