Epson EB-770Fi User Manual page 88

You see a screen like this:
1 Returns to the Epson Web Control screen
2 Power button control
3 Selects the input source
4 A/V Mute button control
5 Freeze button control
6 Displays closed captions
7 Displays a QR code for connecting with iOS or Android devices using the Epson iProjection
app
8 Volume button controls
9 Searches for connected sources
88