www.sbcled.eu - Led display, Led screen, led wall - Crystal 4 br br Crystal 4 is designed for research and development stage rental and booth rental application spaces led display. Adopt synchronization control system processing, acceptable DVI, VGA, HDMI, S-video, composite, YUV input signal, free to play video, graphics and images by real-time, synchronous, clear information dissemination player kinds of information, and can display two-dimensional, two-dimensional animation, video, TV, VCD programs and live.