... 1. 104" Graphic Interactive Professional Electronic Whiteboard with CE, FCC certificates 2. Built to last 3. ... Weight30kgOperating Temp.-10°C to 50°COperating Humidity30-80%Transmission Speed12msProjection GainAvailableScanning Speedfirst point 25ms, consecutive points ... longer)Resolution4096*4096(depend on specifics)Aspect Ratio16:9Certification CE, FCC, ROHS, MOE certificate,ISO14001:2004,ISO9001: ...