Space Shuttle Headset Interface Unit, featuring two cables attached to a gray anodized box with white "Xmit" and "Icom" pushbuttons and a volume knob, with engraved placard: "Interface Unit Hdst, P/N SED36130206-303, Serial No. 1073, Not For Flight Use, NASA/JSC." The reverse bears a belt clip and "Class II, Controlled Equipment" label. In fine condition. Accompanied by its plastic bag with deaccession label.
Provenance: The Spaceflight America Museum and Science Center in Prince Frederick, MD.