It is toslink out to your ZVOX in. LG all have that option so to send to an outboard device.
New TV With an Unknown Audio Out Jack?
I have an older Zvox tv base sound bar only has coaxial RCA & Toslink optical digital inputs. I would like to use it with a new 2023 TV however the TV only has an one that I think I can use. It is the one to the left, square with a star hole. Is that a Mini-Toslink output jack?