ARC Function (Audio Return Channel): Extract TV audio to soundbar or amplifier. Please connect TV (ARC) port to audio adapter output port with cable, then Optical cable/L/R or 3.5mm headphone to soundbar, speaker, home theater, A/V receiver, etc. Reach 192KHz sampling rate - It actually supports sampling rates of 32, 44.1, 48, 96 and 192 KHz, and 24-bit S/PDIF input bitstream on left and right channels. Please use 1.4 cable (19+1), Please note: Manual adjustment of speaker volume is required. TV remote control cannot change volume, TV remote control cannot change volume Simultaneous Audio Output - This ARC adapter can send audio from TV (support ARC function) to Optical/Coaxial/3.5mm/L/R audio via /ARC interface, and output audio at the same time. (Note: Not compatible with AC3 / Digital Plus, etc., please set the audio output to PCM or LPCM before use). Widely used: Supports all HDTVs with ARC function. SPDIF / coaxial, optical, and 3.5mm headphone jacks, 4 output ports, well solve the interface compatibility problem between TV and audio system. It can be used for speakers, amplifiers, sound bars, wired headphones and other receiving devices, providing a diverse listening experience. Colour:Black Material:aluminum Tips: The product may be updated constantly ,Due To Different Batches, The Actual Product May Have Slight Differences Or Color Differences, Which Does Not Affect Use Package Contents: 1 * converter 1 * data cable 1 * English instruction manual Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.