Challenger Basic Features I II III
Identify who is 1st, locks out all other players X X X
Identify 1st and 2nd place option X X X
Play up to 4 teams of 4 X X X
Link up to 3 complete systems for 48 players X X X
High and Low volume settings X X X
Detachable Powerpack X X X
Built In Display Timer   X X
4 Programmable Timing Buttons   X X
Bonus Button   X X
LED lights on Main Box to correspond to player light and buzzer     X
2 Extra buttons (C and V) to control LED Lights     X