(1)Navigation: Preinstalled map in sd card and you can use it for offline navigation directly,and Never be lost again.(2)support Bluetooth with external microphone&build in for hand-free&Safety driving.(3)Build in DVD loader, compatible DVD/CD/MP3/MP4/DIVX/1080P..(4)Screen mirroring:only support android mobilephone.(5)Radio(FM/AM)/USB Slot/SD slot( At the front panel)/ Aux Input/ Suppport 3G function(buy optional of 3G Dongle)