The Enhanced Audio Return channel delivers higher-quality movie soundtracks and music, too—and you won't need a new cable. What's not to like?
What Is HDMI ARC?
HDMI ARC and eARC: Audio Return Channel for beginners - CNET
Difference between HDMI ARC and eARC
HDMI ARC and eARC: Audio Return Channel for beginners - CNET
What you need to know about HDMI ARC and eARC
HDMI Cable 25 FT - 4K HDMI 2.0 Ready - High Speed - Ethernet/Audio Return Channel - Gold Plated Connectors – Video HDMI
What are ARC and eARC? HDMI Audio Return Channel explained
Audio Return Channel (ARC/eARC) - Explained - From Vinyl To Plastic
What are ARC and eARC? HDMI Audio Return Channel explained
HDMI eARC and HDMI ARC: Everything You Need to Know, by Ultimea
HDMI 2.1b: What you need to know and do you really need it