Sharp's 80" Class (80" diagonal) PN-L803CA AQUOS BOARD® interactive display system with capacitive multi-touch technology is so intuitive and responsive that it feels like you are writing on a conventional whiteboard. The PN-L803CA display revolutionizes the way you collaborate with colleagues or classmates. It allow you to display and freely annotate a huge variety of documents, with up to four people able to write onscreen at the same time. Now, whether in the boardroom or the classroom, you can share your message with more precision than ever.