According to their site https://www.bose.ch/de_ch...:
INPUTS:
HDMI eARC (enhanced Audio Return Channel)
Optical input
Ethernet connection
Power supply
ADAPTiQ input
USB (service only)
Wired bass module (optional)
Wired IR Blaster (optional)

Bose is also silent on all others (HDMI and "outputs"). Manual here:
https://assets.bose.com/content...

LG