... screen 2. up to 4 points Touch 3. For Conference rooms and schools 4. Auodio Visual System ... LCD/LED Touch Screen/Monitor/Frame TV are widely used for teaching, video conferencing, video playing , multimedia center, ... interface, easy to use; Online update,getting smarterAll-in-one integration; Flexible Installation: Wall Mount,Freestanding ... Touch Screen LED TV wtih All in one PC for Audio Visual System