TECH This product extracts the audio singe from the HDMI video source, and converts the stripped HOM audio signal via dial Optical’ Coastal 3.8mm aide output to an amplifier, speaker, or sound ber. This is the perfect satin for extracting the audio from your Apple TV, Choirmaster, Roku, Fire TV or any other devices with only a HOM output port. SPECS HOM Version: HOM 1 db HOG Verso: HOC 1.