Epson EpiqVision Ultra LS800 4000-Lumen Pixel-Shift 4K UHD Ultra-Short Throw Laser 3LCD Smart Home Theater Projector (Black) - Manual (Page 73)

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Adjusting Projector Features
Follow the instructions in these sections to use your projector's feature adjustments.
Using the Projector as a Bluetooth Speaker
Operating Connected Devices Using the HDMI Link Features
Adjusting the Light Source Brightness Using Adaptive Light Output
Muting the Sound Temporarily
Shutting Off the Picture Temporarily
Changing the Projected Image Using Flexible Picture
Projector Security Features
Updating the Firmware
Resetting the Projector
Using the Projector as a Bluetooth Speaker
You can use the projector's speakers to output audio from a compatible device connected by Bluetooth.
Note: Bluetooth audio devices are not supported in some countries and regions. You cannot connect
multiple audio/video devices by Bluetooth at the same time. You may not be able to connect depending
on type of device and its Bluetooth standards. Several attempts may be required before pairing is
successful. Even when connecting within the specified communication distance, connections can be lost
due to the signal status.