Samsung RFID Tag Key for Samsung Door Locks Quantity 4 + 1 RFID Card Bundle for 4 RFID tags and 1 RFID card Works with ALL Samsung digital door locks. The RFID sticky keys, tags, or cards can be programmed to open multiple door locks. One key to rule them all (your Samsung door locks that is). Each RFID tag comes with a elastic strap and is lightweight making it easy to carry. RFID card is exact size of bank cards and fits perfectly in your wallet or purse. [ RF ID ] 13.56MHz ISO14443 A Type Mifare