Genuine GI Vietnam Era Electrical Headset: HS-16A with brown cloth cord and Olive drab cloth covered head bands. Also has adjustable double nickel plated steel band. Box dated 03/67. Still in original sealed govt box. These were originally destined for use with a radio set that was provided to the Vietnamese villages and later designated Vietnam Village Radios. Headphone impedance is nominal 520 Ohms. Consists of dual magnetic element with plastic cap and shell earpieces. Great for those vintage Hallicrafters military and shortwave radio receivers with speaker or headset pin jacks on the rear panel. Great collectors item. Unique. NSN# 5965-160-1055