AmazonBasics B07KRWYN4R is an HDMI audio extractor that allows you to separate audio from an HDMI signal and output it to various audio devices simultaneously. It supports 2.0 and 5.1 channel audio output through its Toslink, coaxial, and stereo RCA ports. Connect your HDMI source device, like a Blu-ray player, to the HDMI In port and your HDMI display to the HDMI Out port. Utilize the Toslink and coaxial outputs to connect to an amplifier or home theater system for surround sound. You can also use the stereo RCA output to connect to powered speakers or a stereo system.