Prompt response speed Adopting quick response loop dynamic tracing technique to improve the speed of response from 3ms to 1ms and make sure that writing keep pace with your pen simultaneously. Writing speed: 200''/secondStrong anti-interference board All the Nhboards add one anti-interference shielding layer on it, which can effectively avoid the signal interference outside. Upscale filmNHboards adopt state-of-art PET material film, ensure over 300,000 times writing repeatedly no defect, support whiteboard pen writing, easily clean with eraser, comfortable with your eyes, anti-glare, wearproof. (patent No.:200910132473.6)Control card seperated with boardAll the plate circuit control have been made in a small box installed behind the board, which is convenient to transport, disassemble and maintain. (patent No.:200910132472.1)Strong Impact ResistanceUnlike polycarbonate panel of other whiteboards, All the NHBOARD samrt board contain aluminum-plastic panel, impact resistance.Writing Strong StabilityWhen the pen point touch the board face, cursor on the whiteboard non-flicker, as the strong stability, we can realize the drawing of circle with the diameter of 5cm as compared to the 15 diameters circle made by other manufacturer. 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.