Usage Tips:Basic functions: DTS / AC3 5.1 channel audio decoder A design concept: DTS / AC3 Audio Decoder is widely used to decode the source audio output from audio-video players such as PC, notebook, PS3, XBOX360, HD player, HD set-top box, DM500 / DM800, Blu-ray DVD and HD- DTS / Dolby Sound Field, so that many families, schools, squares, concert halls, cinemas and other places to enjoy the DTS or Dolby sound field brought the shock effect. Functions and features: 1. Decoding DTS / AC-3 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. 2-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 5. Multi-channel one-touch switch, convenient and fast, while the stereo and 5.1-channel switch 6. Sex noise ratio: 120db 7. Resolution: 80db (1KHZ) 8. Response frequency: 20Hz ~ 20KHz +/- 0.5db 9. Analog output level: 2.2V Due to different batches, the appearance, color and printed words of the product may vary, which will not affect the use. size: 105 x 75 x 25mm Material: Metal colour: Black Package Contents: 1 x Decoder 1 x USB Cable 1 x Fiber Optic Cable 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.