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Thread: Bose A20 Aviation Headset - ANR
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Old 13th May 2017 | 05:30
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A Squared
 
Joined: Feb 2000
Posts: 1,550
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From: Alaska, PNG, etc.
Well, to be honest, I've never tried my A20 without a battery to see if the ANR worked. It wouldn't surprise me if it didn't work without a battery installed. I fly airplanes with the 6 pin Lemo connector and batteries last for years, literally.
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