It uses the low energy Bluetooth technology which is able
to register the nearness , in order to transmit an
unequivocal universal identifier taken from a compatible
app or from the operative system which can transform it in
a physical point or to activate an action on the disposal as
a notification of position , a pre-definite position for that
place. The beacons come in different formats, including
small coin cell powered devices, USB sticks and software
versions.