Faltopu projector is a multimedia mini projector, which supports connecting to a phone.
Get an HDMI adapter, then connect the projector and smartphone.
For iPhones, get lightning to HDMI adapter; for Android phones, get a Micro USB/Type C to HDMI adapter.
Trust the projector on the smartphone according to the prompt.
The projector supports Wi-Fi, you can use a wireless connection.
For iPhone, use the Airplay feature on your phone by enabling screen mirroring on the control center. For Android phones, use the cast/mirroring feature on your phone.