Radio-frequency identification RFID LF keyfobs/Keychain Tags are a single part of an RFID system. Compatible with all RFID ID card reader, ID door access devices or RFID reader. RFID Fobs suit many application needs and can be typically used for: access control, attendance control, identification, logistics, industrial automation, tickets, casino token, membership, public transportation, e-payment, swimming pools, and laundry. These are also called Smart key fobs, which are embedded with chips and coil, enclosed in a keychain, NFC key fobs, proximity key fobs, hide key fobs, RFID key tags, and RFID key chains.