This guide describes how to connect an Apple TV to a Bluetooth receiver to play back audio via the classroom amplifier. (This applies to the newer Apple TVs, with the Siri remote.)
Using the Apple TV remote, click on Settings:
Go to Remotes and Devices:
Go to Bluetooth:
Choose LBT-AVWAR500:
After a moment, it should show it's connected:
Notes:
If you see more than one device named “LBT-AVWAR500”, choose the top one. If that doesn't work, try the next one, etc., until you find the one that works.
When the connection is made, the Bluetooth received should light up.
To maintain the connection, set your Apple TV's sleep time to “Never”.