Rolls GS76RL 8-User Game Show Controller SetThe GS76RL from Rolls is a complete 8 user game show controller system, ideal for use as a teaching aid to quiz students. The system's main controller unit has 8 numbered LEDs, a Ready LED, and a buzzer. The 8 remotes each consist of a single button, which creates an audible buzz when pressed. When a player buzzes in, the system will lock out other contestants from buzzing. The remotes connect to the master unit via standard reversing telephone cords.