Riotouch H-102 digital interactive whiteboard has multi user writing system, 100 inch whiteboard size, infrared sensor technology, multi finger touch, strong anti-resistance to light, nano surface, exquisite and elegant noble sense design, ≦0.2mm positioning accuracy, 32768 x 32768 touch preciseness, ≥128 dots/s cursor speed, 12m/s transferring rate, 25ms scanning rate, 16:9 aspect ratio, USB 2.0 and USB 3.0 interface, 5 meter USB cable, intelligent pen tray, page zoom in / out.