Model: Sphinx Chess Voyager CXG-202 (Portachess)
Manufacturer: National Telecommunication System Ltd.
Year: 1992
Est. ELO rating: n/a
Levels of play: 16
Type: Peg / Pressure sensory 

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Sphinx Chess Voyager CXG-202 (Portachess).
It also comes with a cassette tape with hints for playing chess. It gives you up to 250 hours of battery life (4 AAA).  You can change sides during the game.

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