Connect the car audio player with the "Smart BT iPlug" , which can get a more intelligent and convenient driving experience. Mode - Radio, Disc,USB, SD,Bluetooth, Aux in etc. Radio - FM1, FM2, FM3, AM1, AM2 5 band. Seek/Tune frequencies, Access the preset stations, Store the radio stations etc. Disc - Playback the music/video from Disc connected to the source unit. Track Up / Down, Play / Pause. USB、SD - Playback the music from USB、SD connected to the source unit. Search the songs in music list, ID3 display (Song Title, Artist, Album), Track Up / Down, Play / Pause. Bluetooth - Music streaming, Play / Pause, Track Up / Down ,ID3. Auxiliary input - External Audio Control. Preset EQ curves (Pop, Rock, Jazz, Classical, Flat, User). DSP, enhance or attenuate the sound of different frequencies to beautify the sound, the number of frequency bands is up to 20/15/9/7 segments, etc. (different models). Speaker control (Front,Rear,Left,Right). Freely control the light color. 16 languages User Interface. Quick access to map. Custom wallpaper.