1.For the elderly and the other weak group to study. 2.Prevent quivers,and can fix the reading page. 1.Automatically focus; 2..Directly used for computer or television;3.Of the mouse shape cameras; 4.Of colour, black/white and negative mode; 5.Can adjuste the image and the brightness; 6.With brackets,be able to achieve writing function;7.camera lens F=15.8mm; Effective pixel: VGA 35 ten thousand; ...