GPS navigation, ISDB-T TV, Operating system: Microsoft Windows CE 5.0, CPU MediaTek MT3351 480mhz, screen size:5.0", ... finished, the blue light is on. Operating System Microsoft Windows CE 5.0 Navigation Software SD cardVideo Player ASF,AVI,WMV,3GP,MP4 ... , Volume, Languages, Power, Time, System, Default, GPS Info, Navipath. GPS navigation (ISDB-T TV, Operating system: Microsoft Windows CE 5.0,, 050J)