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Military Helmet AT DH-132A K Ballistic (U-161)

ELECTRICAL CHARACTER HEADSET - MICROPHONE KIT MK-1697/G (5965-00-313-8958)   Microphone M-138/G , dynamic (5965-00-937-1851) - Impedance : 150 +-15 Ohm at 1000 Hz - Sensitivity: More than - 56 dB at 1000 Hz - Frequency : 0.3 ~ 3.5 KHz - Humidity: Max 95% Earphone M-139/G , (5965-00-076-8026) SM-B-933867 - Impedance : 1000 Ohm at 1000 Hz (as 2 ea is connected parallel circuit, total impedance is 500 Ohm) - Sensitivity : 100 ~ 3500 Hz U-161 connector is available.

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ELECTRICAL CHARACTER HEADSET - MICROPHONE KIT MK-1697/G (5965-00-313-8958) Microphone M-138/G , dynamic (5965-00-937-1851) - Impedance : 150 +-15 Ohm at 1000 Hz - Sensitivity: More than - 56 dB at 1000 Hz - Frequency : 0.3 ~ 3.5 KHz - Humidity: Max 95% Earphone M-139/G , (5965-00-076-8026) SM-B-933867 - Impedance : 1000 Ohm at 1000 Hz (as 2 ea is connected parallel circuit, total impedance is 500 Ohm - Sensitivity : 100 ~ 3500 Hz U-229 connector is available.

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