Le Wang interactive whiteboard system through the touch screen to transfer the touch point to the computer, the computer through the projector to display projected onto the whiteboard, interactive whiteboard systems to form a set. Le Wang whiteboard nice, plug and play, stable performance, price concessions. This is currently the best on the domestic market, with the most professional electronic whiteboard system, with wireless sound system and HD physical booth, can form a typical multimedia teaching system (my company has a complete solution). LE-80BD whiteboard Specifications Dimensions 1770 * 1280 * 60mm size 1708 * 1221mm writing aspect ratio of 4: 3 ways to write other features: wireless electromagnetic induction pen shortcuts: Bilateral shortcuts Aspect Ratio: 4: 3 Operating System: Windows 2K, XP , 2003, Vista Resolution: 17700 * 12800 Positioning accuracy: <= 0.05mm output electromagnetic induction type O USB / RF wireless accessories / performance Packing List Le Wang LE-80BDx1; wireless electromagnetic induction pen x1; USB x1; Bracket (optional distribution) x1 Power 5V (USB powered) Power <2W appearance parameters Packing size 1870 * 1380 * 100mm Net Weight: 16.5Kg Gross Weight: 23.5Kg Environmental Operating ambient temperature -15 ° C ~ 55 ° C Storage temperature -40 ° C ~ 75 ° C