Epson BrightLink 1485Fi 5000-Lumen Pixel-Shift Full HD Ultra-Short Throw 3LCD Interactive Laser Projector - Manual (Page 51)

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3. Connect one end of the cable to your external speakers as necessary.
4. Connect the stereo mini-jack end of the cable to your projector's Audio Out port.
Parent topic: Connecting External Output Devices
Related references
Input Signal Settings - Signal I/O Menu
Connecting a Microphone
You can connect a microphone to the projector's Mic port to provide audio support during presentations.
Note: The projector does not support plug-in-power microphones. If you want to output audio from the
microphone when the projector is not projecting images, select Always On as the A/V Output setting in
the Signal I/O menu.
1. Connect the microphone cable to the projector's Mic port.
2. Turn on the microphone, if necessary.