How do you connect Bluetooth headphones to the VSX-LX305 or the VSX-LX505?

Start by selecting the source you want to watch and then go into the Home menu. Then select "Network/Bluetooth" and got to "Bluetooth". Select "Bluetooth Transmitter". Select "On(Main+TX)" for surround sound and bluetooth or "On(TX)" for just the bluetooth. Make sure the headphone are in pairing mode. Then press enter on "Search Devices" and select your headphones.