... Operation system:Windows CE5.0external GPS is optionalSupport Garmin, Navteq,TOMTOM, IG08, Route66,DDT, PAPA GO ect,.SD card with ... CMMB ect..Full system TV,Auto or manual station preservingBluetoothSupport bluetooth MP3 palyer function(only used with mobile phone supports) ... store 30 preset stations(12/AM and 18/FM), RDS receiver optional.Auto, semi-auto and manual search, preset memory ...