Welcome to our store! 1. Audio Extraction: The HD output ARC audio can extract audio from high-definition multimedia interface signals into digital and analog signals. 2. Input and Output: ARC Sound Extractor supports HDMI ARC, Optical, and Coaxial input switching. It simultaneously supports Optical, Coaxial, RCA stereo, and 3.5mm stereo headphone output. 3. Volume Adjustable: When switched to ARC and 3.5mm headphone output, the volume level can be controlled by the TV (CEC). 4. Transmission: The digital-to-analog audio converter's optical and coaxial output interfaces support 5.1 channel transmission and a 192KHz audio sampling rate. 5. Easy to Carry: This digital-to-analog audio converter is compact and lightweight, making it suitable for various scenarios. Item Type: ARC Sound Extractor Material: Aluminum Alloy Power Supply: Micro USB Maximum Working Current: 100mA Operating Ambient Temperature: -10 to +55 ℃ Storage Temperature: -20 to +60 ℃ Working Humidity: 10-90% RH (non-condensing) Storage Humidity: 5-95% RH (non-condensing) Size: Approx. 90x73x21mm / 3.5x2.9x0.8in Package List: 1 x Audio Converter 1 x Charging Cable 1 x User Manual Your 100% satisfaction is our top priority. If you encounter any issues, please contact us immediately for the best solution!