Interactive WhiteboardModel: 1-S112 Panel size: 112" Sensor: Pressure sensitive writing styles: finger/pen Touch precision:9600×9600 Consume current: ≤100mA Cusor speed: ≥125dots/second Data port: USB 2.0/wireless RF2.4G/RS232 (optional) Power supply: By USB, no need other cable. Location preciseness: ≤ 0.05mm Intersity of anti-light: strong, no problem for operation under direct sunlight. Transmission speed:8M/S Highlights:Write with pen, move with finger, erase or activate the IQBoard Software with your palm;Customize the sensitivity of touch recognition;Replace the previous controller with a new V7.0 controller to upgrade;IQBoard can still work even the surface is scratchedModels:ModelS050S060S080S100S112Size(cm)107.3*81.4127.4*97.4168.9*127.9226*129252.6*144.6Thickness(cm)22222Active Screen Area(cm)98.3*72.3118.3*88.3161*119.1217.3*120.3243.3*135.3Active diagonal(cm)122150200249278.3Aspect Ratio4:34:34:316:916:9Model(optional) L-Educational, E-BusinessConfiguration (optional) K-With hotkeys; J-With hard hotkeys; W-Support marker pen writing; B- Wireless connection moduleSize:50,60,77,80,92,100,112 inch,4:3,16:9,16:10 ratio,and customized size.