[Elecraft] NCT Proactive noise canceling head set

[Arthur Nienhouse]

*/George
I have a set of NCT head phones that are both active and passive in that 
they are the large covers the ear completely with a large ear piece like 
a helicopter pilot wears in one side it has a battery that is removable 
the other ear has the electronic circuit that phases the external noise 
180 deg out of phase (each ear piece has a built in mic as well.
These are very well made and they work I have not used them in 5 years I 
don't play serious radio any more,
I would like to sell them I can't find a picture of them on line so if 
you are interested I could take a picture of what they are and email you.
I changed out the Electret boom mic replacing it with a Heil 5 element 
when you put them on and push the button to engage the positive active 
noise canceling circuit it puts you in the zone you do not hear anything 
else around you unless its very very loud.
Last I checked the pair of batteries that slid up in the left ear piece 
hold a charge and will except a charge from the NCT charger I believe 
each battery is 4.5 volts
NCT used to make military spec stuff not sure if they are still making 
this head set, the color is gray the pad over the head is 2" wide 
leather they look new.

Regards
Art
ka9zap
/*