1、Audio splitter, allows to connect HD source to a single HD display, and add L + R and SPDIF audio output ports. 2、Convert HD input multimedia interface to HD output multimedia interface, optical audio output and analog R/L audio output. 3、To achieve simultaneous separation of audio signals, PASS / 0CH / 1CH three audio modes are available. 4、Provide solutions for noise, space and security issues, data center control, information distribution, conference room presentations, school and corporate training. 5、Using high‑quality metal + plastic materials, durable and long‑0lasting, suitable for audio signal conversion. 1 x Manual1 x Charging Cable1 x Audio Extractor Item Type: ARC AdapterMaterial: MetalDescription: Convert 1 HD multimedia interface input to 1 HD multimedia interface + audio output (SPDIF + R/L)Output Audio Support: SPDIF + R/L Analog Audio OutputInput Resolution: Up to 1080P (50/60Hz)Power Supply: Need DC5V/1A Power SupplyHow to Use: 1. Use an HD multimedia interface cable to connect the HD source to the input HD multimedia interface port. 2. Connect the HD multimedia interface output port of the converter to the high-definition display. 3. Use an audio cable to connect the R/L port of the converter with the audio device. 4. Use optical cables to connect the SPDIF port with the audio device. 5. Connect the converter to the 5V DC power adapter.