... (depending on compression),128MB,256MB,1G,2G can be optional.LCD Screens: 3”, 3.5” or 4.3”Playback time: Typically ... : MPEG, AVI, DivX,WMVTrigger: MMS automatic activiation or start buttonVolume control: Depressing certain buttons.Viewing movies: Press button will stop previous ... external storage device, connected via a USB cable.Connection: USB 2.0 4.3" LCD module with memory play/videopak