Identifies and separates high quality audio track from an incoming HDMI signal and sends it to a 3.5mm stereo jack and Toslink S/PDIF port, allowing you to connect to speakers, AV receivers and entertainment systems that lack an HDMI connection. Works with multi-channel HDMI embedded audio. Supports PCM 2 / 5.1 / 7.1, Dolby 5.1 / 7.1, DTS 5.1 / 7.1 audio. Supports audio extraction via stereo and Toslink. Supported Optical Audio Formats: PCM 2-CH and Dolby 5.1. Supports ARC audio extraction via Toslink connection. Wall-mountable metal housing allows easy installation in any environment and provides better RF shielding and heat dissipation for dependable performance and long life. Plug and Play Installation - No driver or software installation required.