... .Printing Printable with silkscreen 2 .EM4100,EM4120, ,TK4100,etc Waterproof Proximity Keyfob for Access:Widely used as access control management and electronic ... .56MHz nominal Mifare1 S50,Mifare1 S70,Ultralight,Mifare Desfire, etc. Waterproof Key fobs for Access Control System RFID card