【Overview】 The 4K HDMI audio extractor not only to meet the ideal image of the HDTV but also to meet the need for an extract audio from HDMI source. It can extract the audio signal embedded in HDMI source and convert it through 3.5mm analog audio output and L/R output at the same time. Simple solution for your amplifier / soundbar / analog speaker that have no HDMI inputs, and compatible with various HDMI source devices that do not have dedicated audio output. 【How to use】 1.Connect your TV HDMI port to this Audio Converter HDMI output port with HDMI Cable, Connect your source HDMI Port to this Audio Converter HDMI input port with HDMI Cable. Then using L/R cable connect to the soundbar, Speaker, home theater, A/V receivers etc. 2.If there is no sound or only noise, please set the audio format of the signal source to PCM format. 3.If the machine is not working properly, we highly recommend using DC 5v USB power adapter Or plug into the 5v USB port of the signal source.【Specification】 Input Port: 1 x HDMI IN, 1 x 5V USB port Output Port: 1x HDMI OUT, 1 x 3.5mm Jack bandwidth: 340MHz Max baud rate: 10.2Gbps Max working current: 350mA Note: The maximum support is 4Kx2K@30Hz【Package include】 1 x HDMI Audio Extractor 1 x HDMI Cable1 x 3.5mm to RCA Stereo Audio Cable 1 x 5V USB Power Cable 1 x User Manual【After-sales service】 ※ After purchasing our products, if there is any problem, please contact us, send your order number and give us some photos of the products, in order to ensure your rights and shopping experience, we will arrange replacement or refund as soon as possible!