If you are looking to cast your screen on VAVA Chroma Projector, we suggest you download the VAVA projector app to finish the task.
With VAVA prjector app, you can project files on your mobile to a flat surface (wall e.g.) to view videos, music, pictures, documents, etc. by the push function. Or, you may mirror your mobile screen to the wall to watch videos, play games, or whatever operations on your mobile by the mirror function.