A visualiser is a teaching / presentation tool that enables teachers to share a much wider range of information & artefacts with their pupils or audience via their digital projector or LED touch screen. The Genee Vision 2200 is very user friendly & has no additional power supply. Meaning all that is needed to start is for you to just simply, plug into the USB (Universal Serial Bus) port, run the Genee Vision software, & that is simply it! The Genee Vision 2200, provides a simple one cable, utility, erasing any confusion of cables to sort out, which can save a lot of, presentation planning time. Also with the digital, user-friendly interface, you can simply control all actions with your own computer & mouse.