【Product Features】 HDMI ARC and Optical Input Switching: Supports HDMI ARC, optical fiber/SPDIF input switching. Multiple Audio Outputs: Simultaneously outputs optical, RCA stereo, and 3.5mm headphone audio. Quality Audio: Supports transmission of 192KHz audio sampling rate. 5.1 Channel Support: Optical fiber coaxial interface supports 5.1 channel transmission (signal pass-through). 【Connection and Operation】 Connect the ARC/TV port of the converter to the HDMI/ARC port of the TV using an HDMI cable (connect to the HDMI interface marked "ARC"). Optionally, connect the optical interface of the converter to the TV's optical interface using an optical fiber cable. Use optical fiber cable, coaxial cable, RCA cable, or 3.5mm audio cable to connect to the amplifier system. Connect the ARC/Sound Bar interface of the converter to the Sound Bar using an HDMI cable. Connect the USB power supply cable to the DC 5V interface of the converter. Turn the power switch to the ON position. Switch to the corresponding channel by flipping the switch. 【Package Includes】 1 x HDMI Audio Converter 1 x USB Power Cord 1 x User Manual