Airplanes headphones
David clark headphones
Noise cancelling headphones

Overview
PNR Aviation Headset
Helicopter Use U174/U Plug
Super Soft Double Foam Head Pad
Noise-canceling electret Microphone
Strong Steel Boom for perfect microphone placement
Easy-to-wear super soft silicone gel ear seals
Headband Size Adjustment
Coiled cord from headset to molded plug, 70CM
Assembled strictly following the FAA TSO standards
Color: Black, green
Noise Reduction Ratings (NRR): 24dB

Headphone Speicifcations:
Type: Dynamic (F50)
Frequency Response: 100Hz to 8 kHz
Sensitivity: 95+/-5 dB SPL (1 kHz, 1 mW input per earcup
Side) full volume on ear simulator
Impedance: 150 ohms (300 ohms each; Wired in parallel)
Rate Input: 100mW
Max. Input: 250mW
Microphone and Amplifier
Element Type: Noise-canceling electret
Frequency Response: 100Hz to 5 kHz
Operating Voltage (supplied by aircraft ): 8-32 Volts DC
Matching Impedance: 150-1000 ohms
Sensitivity: -33+/-4 dB
(ref: 0dB SPL=20.0uPa at 1 kHz with 10 Vdc 150 ohms AC
Load)


General
Operating Temperature: -20 to 70° C
Cordage: RAN-1000


AH Coiled cord from headset
To molded plug, 70CM
Intercom Connections Plug: U174/U
Weights: AN-1000H ----570g
Noise Reduction Specifications:
Attenuation Frequency Band: 20Hz~20KHz
Main Attenuation Frequency Band: 20Hz~600Hz
Attenuation Capability: 18~21dB
Power Consumption: 30 mW
Headset size range Height: 10 to 14 cm