Salto XS4 SMILE Proximity Contactless User Card & Shadow card. Used if the Scaleable XS4 Prox has been commisioned in SMILE mode rather than a ROM or Software controlled system. Vaildated via an XS4 SMILE Prox Programming card, the User card allows access to an XS4 SMILE Lockset, E-cylinder or Wall Reader. If programmed to do so, a User card can also allow the door to be set in Office/Passage mode (not the E-cylinder). The Shadow card allows deletion of a lost User card.