What you see above in the picture is Bluetooth RFID pen combining RFID reader capability with Bluetooth communication. Java ME RFID application for mobile devices communicates with Cathesis IDBlue RFID pen and database server and changes your cell phone into a data acquisition device. Communicating with IDBlue, Java ME RFID Application can read RFID tags and transmit the information to cell phones via Bluetooth tag ID. The tag IDs are presented in a list on the cell phone and on selection of the particular ID the related data can be accessed.