Tendak HDMI ARC adapter will send audio from 3 inputs, optical Toslink SPDIF, coaxial and HDMI (ARC), and output simultaneously through optical Toslink SPDIF coaxial and stereo L/R 3.5mm jacks, converting digital PCM/LPCM audio signals to analog output for PS4 HD DVD home theater systems. Kindly Note:1. Please sure your TV have HDMI(ARC ) Port2. Please open your TV and ARC Converter ARC function before you use it3. This HDMI ARC Adapter doesn't support Dolby AC3/ Dolby Digital Plus etc. 5.1 ch Audio, Please Set the Audio Output to PCM or LPCM before Using4. If the ARC does not work, try unplugging the cable or change HDMI cable, wait a few minutes to reconnect, and plug the converter into a power source5. When using the ARC function, the volume needs to be adjusted by your audio device6. 3.5mm L/R channel provides analog sound7. When it does not work, please try to replace the HDMI cable and reconnect it 8. You can use the TV remote control to control the output volume of the HDMI ARC Adapter 3.5mm and RCA interface, but TV remote control cannot control the coaxial and optical volumeSpecification:Input Port: 1 x ARC INAudio Output Port: 1 x optical, 1 x Coaxial, 1 x L/R, 1x 3.5mmMaterial: Aluminum AlloyPower Supply Interface: Micro USBMaximum operating current 65mAPower Adapter specification: AC 100V-240V50/60HZ,DC 5V /1APackage Contents:1xHDMI ARC Adapter 1xUSB power supply line1xUsers ManualNote: When you find that the adapter connected to your input device ARC does not work, please make sure you are connected to the HDMI (ARC) port of the input device Please keep the audio format of the input device and soundbar consistentIt is Incompatible Dolby AC3/ Dolby Digital Plus etc. , Please Set the Audio Output to PCM or LPCM before Using)