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		                        | National Stock Number:
 5965-01-446-4373
 
 Federal Supply Class:
 5965
 
 National Item Identification Number:
 014464373
 
 Description:
 HEADSET-MICROPHONE
 
 Detail:
 An item consisting of a HEADSET, ELECTRICAL and a MICROPHONE (as modified) mounted on or supported from the head. It may include connecting cords, plugs, jacks, and switches. See also HEADSET-CHEST SET, ELECTRICAL.
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 Manufacturer Information:
 
 | OPT-1 | 49012 | UNEX A DYNATECH CO |  | OPT-1N | 49012 | UNEX A DYNATECH CO |  | OPTIMA | 49012 | UNEX A DYNATECH CO |  | OPTIMA OPT-1 | 49012 | UNEX A DYNATECH CO |  | OPTIMA OPT-1N | 49012 | UNEX A DYNATECH CO | 
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 Techincal Specification:
 
 | SPECIAL FEATURES | INCLUDES 1 EARPHONE ELEMENT, NOISE CANCELLING MICROPHONE MOUNTED ON A FLEXIBLE BOOM, AND AN ADJUSTABLE HEADBAND | 
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