Usage Tips:Functions and features: 1. Decoding HD source digital audio signals into analog 5.1 channel audio signals 2. The analog stereo ( R / L ) signal through the audio processing chip, converted to analog 5.1-channel audio signal 3. Two-way SPDIF optical input, 1 coaxial coaxial input, 1 stereo Stereo input, more complete multi-channel digital audio output to bring the switch more convenient 4. RCA output interface, easy docking docking amplifier. Multi-channel one-touch switch, convenient and fast, while the stereo and 5.1-channel switch 5. Sex noise ratio: 120db. Resolution: 80db (1 KHz ). Response frequency: 20Hz ~ 20KHz +/- 0.5db. Analog output level: 2.2V Interface function: 1. Input interface: Optical Fiber, Coaxial, AUX Stereo 2. Output connectors: FL, FR, SL, SR, CEN, SW (Bass) Product : 1. Solvable HD Digital audio source 2. Wide range of applications: network players, high-definition video player, Blu-ray DVD, DVD, SP3, XBOX360 such as the output of digital signals 3. Product exquisite, compact and convenient, plug and play, mobility and strong Plug Type:EU Plug,it applies to Indonesia, Germany, France, Spain, Italy and so on Plug Type:US Plug,it applies to Canada, India,Mexico, Thailand, the United States, the Philippines,Taiwan and so on. Voltage: AC220V / AC110V Material: plastic colour: black Package Contents: 1 x Digital Audio Decoder 1 x DC 5V Power Adapter 1 x Optical Cable 1 x English User Manual Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.