The Bluetooth dongle enables the NXT to communicate wireless to all devices with Bluetooth capabilities, e.g. computers, other NXT bricks, mobile phones and PDAs. Exclusive to the Mindstorms Education software, Bluetooth also enables the computer to communicate to several NXT bricks at the same time (classroom management). With Bluetooth, two or more NXT bricks can exchange programmes and sound files, and a NXT can be remote controlled by a mobile phone.