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4 Channel Quiz Master SK-203 4 Channel Quiz Master SK-203 allows 4 players to play a game similar to college bowl. It detects who presses their button first. Fun for parties as it make a great ice breaker. This kit includes all parts, buzzer, wires, player boards and attractive case. Some folks call this a 'jeopardy board' perhaps after the TV show? Requires 9 Volt battery (not included).