This product is a 3-in-1 digital audio- video cable, which can be used together with the Phone and Pad equipped with lightning , micro USB or type-c interface. Through the multifunctional digital audio-video converter, you can display the app, presentation, web page, slide show and other contents on the screen of your device in 2K format on TV, display screen, projector or other compatible display screen equipped with HDMI or VGA ports.