Abstract: A multifunction device for tracking passengers has a case, a battery within the case, a bodily attachment means mounted to the case for attaching the case to the body of a passenger, a screen on the case for displaying information to the passenger, a GPS receiver mounted within the case, for receiving position data, and a wireless transmitter mounted within the case, for transmitting data wirelessly, wherein the device tracks the location of the wearer through the GPS receiver and directs the passenger within a travel infrastructure through information on the screen. A multifunction device for tracking luggage has a case, a battery within the case for powering the device, a luggage attachment means mounted to the case for attaching the case to the luggage, and identification means. In an embodiment, the identification means is selected from the group consisting of a barcode, an RFID signal and a wireless signal.