This ARC Audio Extractor supports 5.1CH audio output, enabling you enjoy surround sound and offering you immersive watching experience. Besides, with CEC function, you can adjust volume through the remote control of the TV. Feature: Multiple Interface Simultaneous Output It equips with SPDIF, coaxial, RCA and 3.5mm audio output ports, enabling you to enjoy high-quality sound. Support 5.1 CH Audio Output The SPDIF and coaxial interfaces support 5.1 CH audio output, enabling you to enjoy surround sound. Remote Control It supports CEC function, enabling you to use remote control of the TV to adjust the volume. Energy Saving It supports auto mute function when there is no signal. Aluminium Alloy Shell With this shell, it owns great ability to block electromagnetic wave and dissipate heat. Specification: Material: Aluminium alloy Color: Black Power supply interface: Macro USB Max working current: 65mA Power adapter specification: AC 100V-240V 50/60HZ, DC5V/1A Operating temperature: -10~+55 Storage temperature: -20~+60 Item weight: 88g/ 3.1oz Package size: 16.2* 10.4* 2.2cm/ 6.38* 4.09* 0.87in Package weight: 166g/ 5.86oz Packing list: 1 * ARC Audio Extractor 1 * USB cable 1 * User manual