The GPS Tracker Device will have a CPU and on-board memory so that basic commands can be stored in the unit and thus control how it works. The device can store GPS location records or waypoints in memory to be downloaded later on for analysis. If a RF modem is built into the Device, it can transmit the data over the airwaves to the end-user for immediate analysis. Visit it! to get more information >>>>>> http://www.healthcaresdiscussion.com/trackr-bravo/