About this item 【Apple Carplay/Android Auto】Available for iPhone and Android phones. This function can synchronize the phone book, mail, notification, map navigation APP, music APP on the mobile phone to the monitor, and the iphone can also call "Siri" for voice control. Turn on the Bluetooth and WiFi switches of the mobile phone, connect the Bluetooth of the monitor, and click the corresponding icon to use. Turn off both the phone's WIFI and Bluetooth to completely exit the program. 【Mirror Link】Portable player supports iPhone and Android phones to use the mirror link function. The phone screen can be projected onto the monitor screen. [iPhone]: Click on the "Apple Airplay" App, follow the prompts, search for the name of the player in the phone WiFi and connect. Swipe up on the phone homepage, select the double rectangle icon and select "Smartscreen". [Android Phone]: Click the "Mirror Cast" APP, scan the code to download the software, and then connect to the phone WiFi. 【Sound Synchronization】When the FM frequency of the monitor is adjusted to the frequency of the car radio, the sound played by the monitor can also be sent out on the car radio. This function is only used for sound transmission, the monitor cannot listen to FM stations. The AUX line is used for this function. When the signal is unstable, use the AUX cable to connect the AUX port of the monitor to the AUX port of the car radio. 【Audio Output】Before you use an application, please go to the audio output and select the corresponding function, so that the player can sound correctly. For example, if you want to make the machine itself sound, select [Speaker]. To make the sound using Apple Carplay, select the [Carplay/Auto] option. 【Wide Application】Support power supply 7V-32V. Covers all cars. With the card reading function, insert the TF card into the host to watch the video stored in it. The power supply of the monitor is the Type C interface, and the monitor can even be directly plugged into the portable power bank data cable for power supply.