The DIGITUS HDMI eARC converter/splitter offers two operating modes: mode 1, eARC audio extractor - connect an HDMI device (e.g., XBox Series X, PS5) with an UHD TV while you continue to use your old AVR (Audio Video Receiver). Uncompressed 5.1/7.1 surround sound as well as ATMOS and DTS can be extracted from your TV's eARC or ARC port on any standard HDMI input (NOT eARC port) of your older AVR or your soundbar. Streaming devices/sticks, satellite TV, streaming apps on your smart TV benefit from optimal audio contents. Mode 2, audio splitter - with the local HDMI input and switching off eARC extraction at the converter switch, it is possible to split the audio stream of any HDMI multi-channel audio source and transmit the video to any HDMI TV. The audio output offers a black 720p image for compatibility with any older AVR using HDMI and higher.