Epson PowerLite 800F 5000-Lumen Pixel-Shift Full HD Ultra-Short Throw Laser 3LCD Projector (White) - Manual (Page 137)

137
2. To lower or raise the volume, press the Volume buttons on the remote control.
A volume gauge appears on the screen.
3. To set the volume to a specific level for an input source, use the projector menus.
Parent topic: Using Basic Projector Features
Inverting the Audio Channels
You can invert the audio's left and right channels to match the projector installation position.
1. Turn on the projector and start a presentation.
2. Press the Menu button.