... frosted, customer color finish, customer photo overlay Discription125KHz/13.56MHz/860-915MHz preprinted contactless PVC proximity cardPhysicalModelMifare 1KMifare ... laser engravingMaterialPVCWorking temperature-10-50 degree centigrade(PVC)Frequency125kHz/13.56MHz/860-915MHzMore ChipsTK4100,EM4100,EM4102,EM4450, T5577( ... of trademark belongs to trade mark companies. IC smart Card with EM4100