ARC/eARC :First ,Please make sure your display support ARC/eARC function .Second ,Using HDMI cable plug into HDMI ARC/eARC port on your display .and the other side plug into the HDMI output on the switch .( warm tips :3 .5mm audio does not support ARC/eARC function).
HDMI(AUDIO ONLY)/coaxial /optical toslink SPDIF audio output support audio return channel function (ARC) AUDIO ONLY HDMI support eARC (Enhanced Audio Return Channel).
HDMI Audio Extractor -with Optical TOSLINK SPDIF+Coaxial+3.5mm+HDMI audio out allow you to extract the sound from the HDMI input source (like PS5/4,Xbox one etc .)to your soundbar or amplifier ,no need connecting TV or Monitor .
HDMI ARC/eARC Adapter - Extractor the Audio from IV to Soundbar or Amplifier .Connect your TV HDMI (ARC/eARC)Port to this switch HDMI Output Port with HDMI Cable ,then optical/Coaxial /HDMI cable to the soundbar ,Speaker ,home theater ,AV receivers etc ,then open “ARC/eARC” button.
Highly recommend use AWG 26(19+1) standard HDMI 2.0 cable .the distance could reach up to 5 meters before and after when the resolution is 4K@60Hz,can reach up to 8 meters before and after if the resolution is below 4K@30Hz.
Support 24bit deep color per channel ( Kindly Note :It does not compatible with DVI ,we do not recommend you use HDMI to DVI cable connect to your projector /monitor)