1. High-performance Android/Windows operating system, optional dual system for LCD portable digital signage. 2. Support stand alone version, Anti-static ,anti-dust , and anti-glare. 3. 4K UHD optional and high brightness 700nits customizable. 4. Easy to manage and control ad playback. Playback log, easy to understand the playback situation. 5. Diversified usage: you can publish in the background with network, you can export the program from the background to U-disk for updating, or you can directly produce in stand-alone without network for portable digital signage . 6. Super decoding capacity, support most video formats such as MPG, MPG-1/4, AVI, MP4, TS, MKV, RMVB, MP3, WMA, JPEG, BMP, etc. 7. LCD portable digital signage has full function: support horizontal and vertical screen playback, video split screen, scrolling subtitles, timing switch, USB data import, etc. 8. 32-55inch size portale digital signage widely used in shopping malls, supermarkets, hospitals, schools, banks, hotels, airports and other places media display, advertising and touch inquiry.