Screen Size: 72"(4:3)(Size/scale optional) Induction Type: InfraredWriting Type: Pen or finger Touch Preciseness: 8192*8192 Consumption Current: ≤100mA Cursor Speed: ≥125 dots/second Data Port: USB2.0/Wireless RF2.4G/RS232(optional)Positioning Accuracy: ≤ 0.2mmAnti-light Intensity: Excellent, direct under the sunlightTransferring Rate: 12M/SScanning Rate: First point 25ms, consecutive points 8msperating System:WindowsXP/Vista/7/ Linux/MacWorking temperature: -5°C 60°CWorking humidity: 30 80%ModelTE-72Outline Dimension1650*1240MMTouch Area1476*1066MMScale (Length : Width)4:3USB Cable Length6MProduct CertificationCF/FCC/ROHS/WEEEAccessories:1) Intelligent Pen Tray(With pens and Eraser)2) Wall Mount Brackets3) TACTEASY USB Cable(6m)4) User Guide Manual5) CD-ROM6) TACTEASY Mobile height-adjustable floor stand(optional)