Program-joke for those who want to scare your friends and acquaintances. Turn the other thimble game, let him concentrate on guessing. And when he does not expect a trick will pop up that awful face. Those who have weak nerves, it is better not to offer.
With a little effort, you can virtually any modern phone with Java technology make a portable radio that runs through the Bluetooth connection and allows you to share with distant interlocutors not only voice and text messaging, and file.
This mobile radio is useful not only for fun with friends, but will serve an excellent service to students during the delivery session. It is only necessary to remember that, by use of cell phones Bluetooth specification, the range of the intercom will be limited to ten meters.
vestochek specified format sent from the application menu, there exist some set of mobile radios.