Detailed Product Description GPS Navigation, 4.8 inch GPS navigator(MODEL:SN-91)Welcome to use the GPS navigator,which is mainly used for ... driving, walking, riding, or waiting for a meeting; the perfect GPS + entertainment function can make your life and work more splendid ... light is on. Operating System: Microsoft Windows CE 5.0 Navigation Software: SD cardVideo Player: ASF,AVI,WMV,3GP,MP4,FLV ...