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Pair Match is a tabletop electronic matching game for 1 or 2 players originally produced and marketed in 1984 by Bandai for the Japanese market. The game played like an audio version of Concentration--you need to match pairs of sound effects hidden behind squares on the display.
The game was used as a display piece in the Ten-Forward Lounge aboard the USS Enterprise-D (much like the Terrace board game), but not as a game unit. Rather, it was possibly meant to be a "wait call" device to signal a server over to your table.
The unit would be used as a game in TNG: "Ethics", where Deanna Troi and Alexander Rozhenko are playing it while waiting for Worf to undergo his spinal cord replacement surgery.
Also, a couple, sitting behind Troi and Worf, is seen playing the game in Ten Forward when the crew is affected by Barclay's Protomorphosis Syndrome. (TNG: "Genesis")
Another crewmember was seen playing with the game in TNG: "The Vengeance Factor".