ARC Function (Audio Return Channel): Extract TV audio to soundbar or amplifier. 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. Support 192KHz sampling rate - It 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). Note: Manual adjustment of speaker volume is required. TV remote control cannot change volume. Simultaneous Audio Output - This ARC adapter sends audio from TV (support ARC function) to Optical/Coaxial/3.5mm/L/R audio via ARC interface, and outputs audio at the same time. (Note: Not compatible with Dolby AC3 / Dolby Digital Plus, etc., please set the audio output to PCM or LPCM before use). Compatibility: Supports HDTVs with ARC function. SPDIF / coaxial, optical, RCA and 3.5mm headphone jacks, 4 output ports. It connects TV and audio system. It can be used for speakers, amplifiers, sound bars, wired headphones and other receiving devices. Colour: Black Material: Aluminum Notes: Production batches may vary. The actual product may have slight differences or color differences. 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 to differ from the real thing. The measurement allowed error is +/- 1-3cm.