Radio-frequency identification (RFID) is a method used to identify automatically objects, products, animal or person using radio waves. Devices called RFID tags or transponders are stuck to the object to be identified. The tag can send and receive radio frequency signals. Each RFID tag stores unique identification information for any object / person. The automatic identification method relies on storing and remotely retrieving data using devices.

Some tags can be read from several meters away and beyond the line of sight of the reader. Most RFID tags contain at least two parts. One is an integrated circuit for storing and processing information, modulating and demodulating a (RF) signal and can also be used for other specialized functions. The second is an antenna for receiving and transmitting the signal.

Hotels issue RFID based cards to its guests and can identify VIPs and High Net worth Guests when they reach the hotel premises. The hotel can immediately retrieve the guests’ preferences stored in their Customer Relationship Management System (CRM) and make necessary arrangements to match the guest’s preferences.