GPS navigation, ISDB-T TV, Operating system: Microsoft Windows CE 5.0, CPU MediaTek MT3351 480mhz, screen size:5.0", 480*272 GPS ... light is on. Operating System Microsoft Windows CE 5.0 Navigation Software SD cardVideo Player ASF,AVI,WMV,3GP,MP4 ... Brightness, Volume, Languages, Power, Time, System, Default, GPS Info, Navipath. GPS navigation (ISDB-T TV, Operating system: Microsoft Windows CE 5 ...