... function,good for eye. 3Chip SolutionCC1800HXF4DISPLAYDISPLAY TYPETFT (Touch screen) RESOLUTION800*480SIZE5.0 inch5Size(HeightXWidthXThickness mm) 149mm(L) ... typeBuilt in Li Polymer(1800mAH)7play timeaudio(shut off screen and with earphone)about 30hrs,video..about 5hrs; ... +1,+2,+3,+4,+5OTHERSFM inne record14Power off timePower off time .OFF,3M,5M,10M, 15M,20M15other CalendarSupportG-SENSORSupportUSB ...