Aventiled

Hey I have an OLED C3 evo A Pioneer amplifier is connected to the optical output. I want to connect Bluetooth headphones and use them at the same time as the amplifier. The thing is, I haven't seen such an option on TV. It is possible to play simultaneously with the Bluetooth headphones and the internal speakers on the TV. There is no option for Bluetooth and the optical port at the same time. Am I missing something here? Thanks Dani