Acer Smart Touch Kit II for UST Projectors Acer U&UL series Product Specifications Technology Laser Image Calibration Technology Active screen area 40 -120" (no sunshine room)/ 40-100" ( sunshine room) Aspect Ratio 4:3/ 16:9/ 16:10 Projector throw ratio 0.29 - 0.45 Power Consumption 5W Power requirements 5V / 1.5A Latency < 30ms Positional Accuracy ±1 Pixel Signal refresh rate 120 fps Calibration Automatic Calibration (5s) / Semi-auto Calibration/ Manual Calibration Multi-touch 10 points touch. Pen and eraser can operate simultaneously. Software Calibration Software, Whiteboard Software System requirements Windows XP / Vista / Windows 7/ Windows 8/ Windows 10 Language English, German, French, Italian, Spanish, Portuguese, Russian, Chinese Weight 0.5 kg