... MP3PictureSupport JPEG, BMPE-bookSupport TXT, TTS DV/DCN/AGameBuilt-in gameBluetoothSupportAV-INSupportFM transmitterSupportDVRSupportBusiness softwareSupport calendar, calculator poem, notepad etc.Language ... saveAuto- enter idle state , auto-off backlightGPS NavigationGPS moduleBuilt-in main chipexternal antennaN/AReceiver frequency1575.42MHzPortCOM1Baud rate4800Track22 TracksGPS module sensitivity ...