The headset is original to Aliens but it is not known which character wore this particular one. However it is of the type worn by Gorman, Ripley, Hicks, Bishop, Spunkmeyer and Vasquez.
(Headsets similar to these were also worn by the crew of the Nostromo in Alien.)
This prop appears courtesy of the John Shadwell collection.

Text reads 'Minilite' ... 'Racal Amplivox England'.