I have the Sony MDR-NC50 noise cancelling headsets.
The NC50s completely cover the ears, are quite comfortable
for long periods although a little bit of pressure on the ears,
but at least they won't fall off if one bends over.
I bought these especially for BS7H, Scarborough Reef, because
there would be a generator 3-4 feet from the operating table.
We're sitting on a rock, remember. The NC50s did a great job
eliminating generator noise. I could push the temporary "off"
switch and the generator noise would really come through.
Because the headsets completely cover your ears, that "off"
switch does little good to hear somone talking. You must
remove them completely to hear someone talking.
I listened with the NC50 while flying in an old 747, San Francisco
to Hong Kong (14 hours thank you very much), and the NC50
eliminated that constant drone, making it possible to hear a
movie sound track without cranking up excessive volume.
At BS7H we also had some Bose noise cancelling headsets.
I thought the Bose was a bit better at eliminating generator
noise. Sony NC50 ~$100, Bose ~$300.
de Joe, aa4nn
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