Electro-Magnetic Remapping (EMR) is a technology SCUF created to allow a gamer to reprogram the back paddles to most face buttons with the use of an EMR key (included with the purchase of EMR).
EMR is an optional technology and must be selected during checkout to make your paddles re-programmable. When purchased, EMR allows you to program 8 functions of the controller: X, O, Square, Triangle, L3, R3, Left D-pad, Right D-pad to any of the four back paddles.
If this option is not selected during checkout, the SCUF IMPACT paddle configuration (left to right: X, Square, Triangle, O) is fixed and cannot be reset.