On the Clock Escape Room Game (w/ Audio)

It's a race to punch in and punch out. But mark your time, you're on the clock!

Brief introduction:
The player begins the game by swiping the IC card at Location A, which triggers the countdown timer. Then the player must swipe the card at Location B before the end of the countdown, otherwise the player will lose the game and it will reset. If the player wins the game there will be a voice and the lock will release.

Prop list:
1 power supply 
1 countdown timer
2 IC card readers
2 IC cards
1 controller 

Features:
1. User can set the countdown time. 
2. User can revise the audio sound clue to fit the story.