Feature: 1. DTS / AC‑3 audio decoder can be applied to the source audio output of a variety of audio and video players, bringing DTS sound effects. 2. Analog stereo, the signal is converted into an analog 5.1 channel audio signal through the audio processing chip. 3. Multi‑channel one‑touch switch, convenient and fast, switch between stereo and 5.1 channels at the same time. 4. It can be applied to the output of digital signals such as HD video players, DVD, and DTS digital audio source decoding. 5. Interface functions are complete, including optical, coaxial, stereo input interfaces and CEN, FR, FR, SL, SR, SW output ports. 6. Dual-channel SPDIF optical input, 1 coaxial input, 1 stereo input, and more complete multi-channel digital audio output, making it easy to switch. 7. Used for audio and video players such as support for PC / PS3 / XBOX360 / HD player, HD set‑top box, DM500 / DM800, for blu‑ray DVD and HD‑DTS sound field. Specification: Item Type: Audio Decoder Material: ABS Single to Noise Ratio: 120dB Response Frequency: 20Hz~20kHz Working Temperature: -20℃ - 40℃ . Package List: 1 x Audio Decoder1 x USB Cable1 x Fiber Optic Cable1 x Manual Note: When the decoder is connected to the TV, the audio output needs to be set to digital signal output (PCM), and the playback device audio source must be a 5.1 channel audio source (lossless audio format, DTS, AC 3, PCM, etc.), and the decoder output needs to be connected to an amplifier or active speakers that support 5.1, or else you can't get the 5.1 sound effect.