Characteristics: 1,touch screen;2,led flat glass;3 office/school/home/public place solution.4 support 3Dmovies,one key switch ... used in a variety of occasions , such as : school classrooms , training institutions , offices, meeting , office presentations , teleconferencing , the hotel reception , family ... Top Quality 42inch Led Touch Screen All-In-One PC For School/Office/Public place /Home