... /m24. Viewing Angle: L/R/U/D178°/178°178°/178°5. Working Environment: -20°C~40°C6. Power Supply: AC 90V ... , JPEG, BMP, PPT, WORD, EXCEL, TXT, MP3, RMVB, SWF etc.5. Scrolling texts in English and Chinese version are available, various ... /off the units by remote controller.11. Support displaying in dual screens, play different video files and audio contents in these ...