3m HDMI Cable 4K Ultra HD High Speed with Ethernet HEC ARC
4K HDMI Audio Extractor, HDMI to HDMI with Audio and Optical Toslink SPDIF + 3.5mm Stereo Audio Out, HDMI Audio Extractor Splitter Converter Adapter, Support 4K@60Hz 1080P Full HD 3D for PS4
HDMI ARC/eARC: The one-cable TV audio tech fully explained | Digital Trends