1,Auto accessories electronics GPS navigation 2,For universal cars, 6 inch Touch screen, 3,MP3/MP4, ... has the optional function of video playing, audio playing, Bluetooth hands free, FM, Bluetooth, photo viewing, and E-Book etc.TypeFeaturesTFT touch ... AV-In Function (Optional) Remark 1:Bluetooth+$3.5,AV+$1.6, 128MB+$1.6Remark 2:Bluetooth needs 128MB (WITH FM&AVIN&BT ...