Tohilkel HDMI Audio Extractor will help you extract audio signal from composite HDMI signal to amplifier,speaker,audio receiver,headphone,soundbar. Product parameters: Input: HDMI Output: HDMI, Toslink/optical(audio), 3.5mm jack(audio) HDCP version: HDCP1.4 HDMI version: HDMI1.4 Video format: 36/30/24 bit deep color Resolution: 4K/4096x2160@24fps, 3820x2160@30fps, 1080P, 3D, support CEC LED indicator: When the converter is on, the red LED indicator lights up. When successfully connected to the signal source device, the green LED indicator will light up. Note: ARC function is not supported. Dolby Digital Plus audio is not supported, it supports DTS Audio and Dolby digital audio. Package include: 1*HDMI Audio Extractor 1*3.5mm Jack to R/L Audio Cable 1*Toslink/Optical Cable 1*USB power cable