INTERACTIVE WHITEBOARD high strenth allow frame . brain pen holder high gain,high wea resistance can be written directly by whiteboard marker and fingers, also some thing which are not transpanrent thing Function of Projection of Board Projection Size ≤94 inch Projection Gain Available Viewing Angle 170 degree in Horizon 160 degree in Vertical Surface Material PET material/Matt surface Electric Performance Induction Way Electromagnetic induction Power Input USB power supply or 100-240VAC,50/60HZ AC Current Consumption =100mA(USB power supply, no extra power) Signal Interface USB2.0 The Maximum Length USB Cable Can Support 5m Transmission Speed 12M/s Anti-light Intensity Use under direct sunlight Scanning Speed The first point 25 ms, consecutive points 8 ms Cursor Speed 180 points / sec Display Resolution 4096*4096(Depends on the actual computer and projector resolution) Display Ratio 16:9 Optional Accessories Wall-mounted Annex Included Electronic Pen Included Interactive Whiteboard Software Installation CD-ROM Drive Included Trolley Optional Software category 1.Electronic Classroom Optional 2.Interactive Meeting Software Optional 3.Exhibition, Exhibition Dedicated Software Optional Warranty 3 years Certificates CE, FCC,CCC,Rohs,ISO,etc