NOVELTY - The device (800) has a radio frequency identification (RFID) tag that contains identifying information readable by the RFID reader devices. A battery is provided for powering electronic communication circuit by which the tag device communicates with remote systems independently of RFID reader device. The communication circuit has a cellular communication module for communication through a cellular data network and the tag device a location circuit such that the tag device is operated remotely to report a location based on trilateration using cellular network.    USE - Tag device for identification of tagged item and protection of personal items e.g. checked baggage in possession of airlines, airports or other travel mediums by land or sea e.g. trains, buses, ships etc.    ADVANTAGE - The tag device is a personalized tag that incorporates RFID technology and is designed for easy identification by the owner of the tagged item and protection of personal items e.g. checked baggage in the possession of airlines, airports or other travel mediums by land or sea e.g. trains, buses, ships etc and operators. The airport and airline workers can utilize hand-held RFID readers to quickly identify baggage at any time and the tag device aid airport security as security officers can use the readers to identify the owners of unattended baggage.    DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following:    (1) a computer-implemented method for monitoring and retrieving baggage items;    (2) an apparatus for monitoring and retrieving baggage items;    (3) a non-transitory computer-readable storage medium for performing a method for monitoring and retrieving baggage items; and    (4) a computer-implemented method for preventing accidental collision.    DESCRIPTION OF DRAWING(S) - The drawing shows the block diagram of a hardware of a tag device.    Tag device (800)    Microcontroller (802)    Accelerometer (804)    Global positioning system and global system for mobile communication module (808)    Charger circuit (810)