built-in d-play system: connect with mobile phone to access mobile phone contacts, email, notification, map navigation, music, video and other information, and also implement voice control support android/ iphone mirror link,through phone's original usb line can synchronized to the on-board screen,android phone can realize two-way control,iphone? can realize one-way control built-in bluetooth function, can connect to phone, and handscalling, more safer when driving car,bluetooth music play support steering wheel control function : quickly switch functions which you want with your car's steering wheel,more convenient support reverse rear view system: if connect to a car backup camera, the car stereo monitor will turn to rear view reversing details automatically and help driver a safe parking.syi