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ANR Aviation Headset (ANR power: 9V battery)
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
Type: Dynamic (F30)
Frequency Response:50 Hz to 20 kHz
Sensitivity:95+/-5 dB SPL (1 kHz, 1 mW input per earcup side) full volume on ear simulator
Active Noise Attenuation:
Dynamic 42 ohms:
Rate Input: 30mW     Max.Input:100mW
Speech Sound:
Dynamic 300 ohms:
Rate Input: 30mW     Max.Input:100mW
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)
Operating Temperature: -20 to 70°C
Cordage: AN-1000HC Coiled cord from headset to molded plug, 70CM
Intercom Connections Plug: U174/U
Weights: AN-1000HC ----650g
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

AN-1000HC   ON/OFF Version
1. When the ON/OFF switch is on, the ANR function starts working.
2. When the battery power is low, the red LED indicator will flash. The Active Noise Reduction will cease to operate after one hour.
3. When you put off this box and want to put on it again, wait at least 30 seconds. This will be better to protect the headphone.