Can the matching connection cable also be connected to the TV with an adapter to USB? I have seen that I only have HDMI or USB connections, no audio output.
Yep! I think you can use an adapter from the jack plug to the USB plug without any problems. By the way, you can also use a double jack plug (2x female) and attach two such headphones to it! This works without any problems for my family members who are over 85 years old.