Amazon.co.jp: ULT-WIIQ HDMI 2.0 Extension Cable L Type 270 Degree HDMI Type A Male to Female Converter Cable Support 4K@60Hz, 3D Audio Video Blu-ray Player, Nintendo Switch/TV/HDTV/Roku/Xbox 360/PS4/PS3 and More (L.5m) :
What's HDMI ARC? - Coolblue - anything for a smile
HDMI Wiki - SemiWiki
What can HDMI Cables do? ARC and CEC explained
HDMI ARC and eARC: Audio Return Channel for beginners - CNET
HDMI - Wikipedia
HDMI ARC and eARC: Audio Return Channel for beginners - CNET
What's HDMI ARC? - Coolblue - anything for a smile
HDMI - Wikipedia
HDMI ARC and HDMI eARC: everything you need to know | What Hi-Fi?