VRROOM need setup before use. PLEASE DON'T BUY if no time read user manual. before you buy please ask us what issue you want to fix or read our forum before you buy. 40Gbps VRR Passthru or FRL5 Upscale or TMDS/FRL0 Downscale all up to 120Hz while extracting full audio from ANY HDMI source to feed ANY Audio sound system with the best possible audio formats! WORLD'S FIRST 8K VRR and HDMI 2.1 sound extractor that allows FULL AUDIO (up to receivers audio specs) from ANY external HDMI source to ANY HDMI, ARC or eARC sound system. State of the art HDMI 2.1 central that support ANY video and/or audio signal in existence today including VRR, DV, LLDV, HLG, HDR10+, DTS:X, ATMOS and more…