Question Samsung Smart TV, LG soundbar, Avantree wireless headphones

[txazn]

I have a Samsung NU6900 Smart TV that uses USB, HDMI, and optical connections. I have an LG Flex SJ7 soundbar that can be connected using HDMI or an optical cable. I would like to connect my Avantree wireless headphones to the soundbar because the Samsung TV uses the LG soundbar. We want to use the soundbar when we normally watch TV, but we want to be able to use the Avantree headphones when someone is sleeping. Is there a way to do that using a receiver or transmitter? Any help would be greatly appreciated.

 

[helpstar]

Which Avantree headphone model is it?

 

[txazn]

It is the BTHT 3189. Thanks.