1. All in One Touch Screen 2.LCD TV 3 Infrared smart whiteboard 4.,LCD touch pc 5. Own R&D, ... touch, writing, drawing, spotlight, mask, media play, record, annotation, free use rich gallery , or Internet resources , etc. Support Wireless MicrophoneTouch Screen Display ... video/Audio IO ConnectorsOSD LanguageChinese, EnglishEnvironmenta :Operating Temperature :0°C to 40°CStorage Temperature :-20°C to 50 ...