?Support fiber output ?Supports coaxial output ?Support RCA stereo output ?Support 3.5mm stereo headphone port output ?3.5mm stereo headphone port equipped with high-performance audio amplifier ?Support switch noise reduction function ?Supports no signal automatic mute function ?Support transmission 192KHz audio sampling rate ?Optical fiber coaxial interface supports 5.1 channel transmission Steps for use: ?Connect the adapter's HDMI port to the TV's HDMI/ARC connector via an HDMI cable. (Note: The HDMI interface connected that does not support ARC function cannot output audio normally.) ?Use fiber optic cable, coaxial cable or RCA cable and 3.5mm audio cable to connect to the amplifier system. ?Finally, connect the DC head of the power adapter to the DC input of the distributor and insert the adapter plug into the power outlet. ?Turn the adapter switch to the ON position. Specifications: ?Shell material: aluminum alloy ?Power supply interface: Micro USB ?Maximum operating current: 65mA ?Power adapter specifications: AC 100V-240V 50/60HZ, DC 5V/1A ?Working environment temperature: -10°C to 55°C ?Storage temperature: -20°C to 60°C ?Operating humidity: 10~90% RH (no condensation) ?Storage humidity: 5~95% RH (no condensation) ?Size: 81.5x58.5x21.5mm ?Weight: 88g