1Adoptingquickresponseloopdynamictracingtechniquetoimprovethespeedofresponsefrom3msto1msandmakesurethatwritingkeeppacewithyourpensimultaneously.2ourrespondspeed:200''/second,ourprocessrate:480points/second.3NHBOARDiwbhasbeedtestedstrictlyinhighlycorrosionresistantinspectionbeforecomingoutfromfactory,anti-highhumidityworkable20%-90%noproblem,anti-hightemperatureworkable-15degreeto55degree.itistotallymeettheneedsfromcoastalcountry4 morecompetitivepriceandrealiablequality-ISO9001,CE,FCC,RoHS,C-tick classroomwhiteboard parameter 1. Ways of Induction:Touch Sensitivity2. Writing Pen:Fingers, or other blunt object3. Communication:USB(Available); wireless(come soon)4. Model:TGN705. Physical Dimension (mm):1390*1065*206. Size (diagonal):69 inch7. Maximum projected image:64 inch8. Weight(kg):219. Shipping size (mm):1500*1170*12510 Shipping weight (kg):2511. Projection proportion:4:312. Temperature:Workable -15-50°C Memory -40-50°C13. Humidity:Workable 20-90% Memory10-95%14 Note:Size error: ±3mm,Weight error: 1Kg. The shape and standard are subject to change without prior notice.15. SoftwareSupport Windows XP-Vista-W7, Software upgrades are available16. Technical specifications:Touch resolution 8192 × 8192, Process rate: 500 point/second, Precision: ≤1mm17. Screen surface:The hard-coated polyester surface is tear proof, optimized for projection, compatible with dry-erase markers (with MPC surface supported which is optional accessory)and easily cleaned with whiteboard cleaner.18. Wall Mount Bracket:Wide with six screws and drywall anchors to support a wall-mounted interactive whiteboard.19. Computer Connection:32"(10m) USB Cable; 25m optional accessory20. Power Requirement:Power is obtained from the computer directly through the USB cable21. Mobile Floor Stand:Optional accessory, with 12 different height notches to adjust.