How to connect the EM lock?
Connect the line from controller to EM lock,black to black,red to red.

How to Play?
Step 1:
There is a Tangram prop in the room.Each of them has different colors and shapes,with total 11 wodden pieces.Adventurers need to find other pieces and put all of them into the wooden box.
Step 2:
There is only one way to put all the 11 pieces into the wooden box.After putting all the wooden pieces int the box,EM lock will open.

How to Reset?
There are two way for resetting,first way,just need to take away any piece of wood or more,the EM lock will lock again,second way,just power off the controller and repower on it.

Feature:
Suitable for all aged:this tangram prop is much in demand and widely used in the escape room game.With intersting and inteligent deisn,It not only suits for adults but also children.