ARC (Audio Return Channel) function: Extract TV audio to soundbar or amplifier. Connect the TV's HDMI (ARC) port to the Tendak audio adapter's HDMI output with an HDMI cable, then optical cable/R/L or 3.5mm headphones to soundbar, speakers, home theater, A/V receiver, etc. Achieve 192 kHz sampling rate - It actually supports sampling rates of 32, 44.1, 48, 96, and 192 kHz, and 24-bit S/PDIF input bitstream on the left and right channels. Use HDMI 1.4 cable (19+1). Note: Manual adjustment of speaker volume is required. The TV remote control cannot change the volume, the TV remote control cannot change the volume. Simultaneous audio output - This HDMI ARC adapter can output audio from the TV (supports ARC function) to optical/coaxial/3.5mm/R/L audio via the HDMI/ARC interface and output audio simultaneously. (Note: Not compatible with Dolby AC3/Dolby 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, RCA and 3.5mm headphone jack, 4 outputs, well solves the problem of interface compatibility between TV and audio system. It can be used for speakers, amplifiers, soundbars, wired headphones and other receiving devices, providing a versatile listening experience. Color: Black Material: Aluminum Tips: The product may be continuously updated. 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 user 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 +/- 1-3 cm.