Just connect the it-Receive receiver to your computer, install the Switch Centre software and you are ready to use an it-Roll rollerball, it-Stick joystick or control your switch software using the it-Switch. Each connects wirelessly - no wires from your devices to the computer. With a range of 10m (32 feet) these can work from anywhere in the classroom - ideal for including everyone in an interactive lesson. Up to six separate input devices can be used at one time, using a single receiver.