ARC Audio Extractor] Audio Return Channel function and audio extraction to digital and analog signal. It means when connected to an ARC device, such as your TV with ARC port, the audio will be returned from the TV and output to SPDIF, Coaxial, L+R RCA, 3.5mm; Note: please set your TV's audio output to PCM, LPCM [192KHz DAC Digital to Analog Converter] Input SPDIF or Coaxial Digital signal, Output to L+R Analog Audio, 3.5mm stereo audio; Note: set your TV's audio output to PCM, LPCM [ ARC Volume Adjustable] When you switch to ARC mode, the volume can be controlled by the TV's remote control (Note: is 1.4 version or above, both your device and cable must be necessary, don't forget to set the control configurations for your TV, or for volume control) [SPDIF to Coaxial Bidirectional Converter] SPDIF (Toslink/Optical) convert to Coaxial, Coaxial convert to SPDIF(Toslink/Optical); [Mini Size and Easy to Use] Aluminum shell, Small size, portable, compatible with for Blu-ray DVD, HDTV, TV, TV Box, Game PS2, PS3,, Style: ARC Audio Extractor Audio: PCM Audio Sampling Frequency: 192Khz Mode: ARC, Coaxial, Optical Size:4 x 2.4 x 0.8 inch Setting: Set the audio output to PCM or LPCM by using; Connection and Operation: 1. Connect the adapter port to the TV (ARC) port via the cable 2. Connect the converter's optical fiber and coaxial input port with the corresponding audio interface on the DVD or PS3 via optical fiber cable or coaxial cable 3. Connect to the amplifier system via optical fiber cable, coaxial cable or RCA cable and 3.5mm audio cable 4. Connect the USB power cable to the -USB interface on the converter 5. Switch to the corresponding audio by flipping the switch Material: Aluminum alloy Color: Black Package Contents: 1 * Audio Extractor Only the above package contents, other products are not included. Note: Light 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.