About this item [HDMI ARC Audio Extract] MICROWARE HDMI ARC Adapter to digital and analog signals. Use the HDMI cable to connect the TV HDMI ARC port to the ARC audio converter, and then connect optical/coaxial or 3.5mm to to soundbar, speaker, home theater, A/V receiver, etc. Note: 3.5 Jack only supports only PCM/LPCM audio. TV must have an ARC port, otherwise it cannot be used.