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Microphone
| Frequency Response Range | 200Hz-4000Hz |
| Alternating current impedance | 150 Ω ( 1kHz) |
| Sensitivity | ≥-55db (1kHz) |
| Directivity | “heart” shape |
this copper Mandril is with high quality , it is used in the Millitary headsets .so it has high standard workmanship .
micro mylar speaker