Feature 1 Sound Extraction: HD output ARC sound can extract sound from high definition multimedia interface signals to digital and analog signals. 2 Input And Output: ARC Sound Extractor Supports high definition multimedia interface ARC, optical, coaxial input switching function; Supports optical, coaxial, RCA stereo, 3.5mm stereo headphone output simultaneously. 3 Volume Adjustable: ARC sound extractor switches to ARC and 3.5mm headphone output, volume level can be controlled by TV (CEC). 4 Transmission: Digital analog sound converter optical coaxial output interface supports 5.1 channel transmission, and supports transmission of 192KHz sound sampling rate. 5 Easy To Carry: Digital analog sound converter is aluminum metal case, small size, easy to carry, suitable for a variety of scenarios.Item Type: ARC Sound ExtractorMaterial: Aluminium AlloyPower Supply Interface: Micro USBMaximum Working Current: 100mAOperating Ambient Temperature: -10-+55 Storage Temperature: -20-+60 Working Humidity: 10-90 Percent RHNon Condensing)Storage Humidity: 5-95 Percent RHNon Condensing)Size: Approx. 90x73x21mm/3.5x2.9x0.8in Package List1 x Sound Converter1 x Charging Cable1 x Instruction ManualNoteManual measurement, please allow slight error.