11. Built?in D?Play system: connect to mobile phone to access mobile phone address book, mail, notification, map navigation, music, video and other information, and realize voice control. 22. Compatible for Android Auto, download compatible for Android Auto on your mobile phone and connect it with a USB data cable. 33. Built?in Bluetooth function, can be connected to mobile phones, hands?free calls, safer driving, Bluetooth music playback. 44. Fm radio: You can listen to real?time road conditions, news broadcasts, weather forecasts, etc.... Fm receiver has 18 preset storage functions. 55. Support steering wheel control function: use the car steering wheel to quickly switch the functions you want, which is more convenient. 66. Support reversing rear view system: if connected to the car reversing camera, the car stereo display will automatically turn to the rear view reversing details to help the driver to park safely. 77. Mirror link with for Android phone and for Ios phone via USB cable. 88. Eq function and subwoofer output and an external microphone can be connected.