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.

Press the settings button on the remote control.
Select Bluetooth Speaker Mode and press the Enter button to enable it.
Enable the Bluetooth function on the device you want to connect to and select Projector from the available device list. See the documentation for the connected device for more information.
Note: You can change the name displayed for the projector. Press the Android TV settings button on the remote control and then select Device Preferences > About > Device name. There is a delay in the audio output from any Bluetooth audio device. If you want to temporarily turn off the projected image, press the blank button on the projector or remote control. To cancel a Bluetooth connection, disconnect from the connected device.
To exit Bluetooth Speaker mode, disable it from the projector's menu.
Note: While the projector is in Bluetooth Speaker mode, you can connect input devices such as smartphones or tablets, but you cannot pair output devices such as headphones or external speakers. If you are having trouble pairing speakers or headphones, make sure the Bluetooth Speaker mode is disabled.

You can also output the projector's audio to connected Bluetooth audio devices, such as speakers or headphones. See the link below.