Group of three variants of the Very Lightweight Headset (VLHS) unit designed for use on the Space Shuttle and International Space Station, two featuring thin metal headbands (marked on the cables as part numbers "SED16101291-313" and "SED16101291-314"), and one with a black plastic headband (marked as "P/N 528-21479-2"). In overall very good to fine condition.
Provenance: The Spaceflight America Museum and Science Center in Prince Frederick, MD.
