... ,35X35,50X50,75X25,100X25,100x50mm Chip: NXP mifare S50, ICODE 2 Propocal: ISO14443,ISO15693 Nanning XinGeShan Electronic Technology Co. Ltdwhich is ... : 25X25,35X35,50X50,100X25MMAntenna:Al etchingChip:NXP mifare S50, ICODE 2, Ultralight,Surface Material:PETBacking material:PETProtocol: ISO 14443,ISO15693Reading distance: 1 ...