1、Built-in high-performance RTOS operating system and audio decoding chip, support for DTS/AC-3. 2、Super fast startup time is about 3 seconds. 3、Input: 1 optical fiber input port, 1 coaxial input port, output: SW, CEN, SR, SL, FR, FL, 3.5mm headphone port. 4、Automatically decode the AC-3 / DTS (LPCM/PCM) input signal without any settings. 5、High compatibility, support network playback, HDTV, DVD, DM500S, DM800HD, etc. Features: 1. Built-in high-performance RTOS operating system and audio decoding chip, support for DTS/AC-3. 2. Super fast startup time is about 3 seconds. 3. Input: 1 optical fiber input port, 1 coaxial input port, output: SW, CEN, SR, SL, FR, FL, 3.5mm headphone port. 4. Automatically decode the AC-3 / DTS (LPCM/PCM) input signal without any settings. 5. High compatibility, support network playback, HDTV, DVD, DM500S, DM800HD, etc. 6. Mini metal case, which is firm and has great anti-interference. 7. Adopt 6CH 3.5mm headphone port output, easy and fast to use. 8. Support 6CH (5.1CH) volume synchronization adjustment. Specification: Condition: 100% Brand New Support Audio Format: MP3, AC3, DTS, WAV, WMA, AAC, ALAC, FLAC, APE, OGG, M4A Signal-to-noise Ratio: 12db Degree of Separation: 80 Db (1 Khz) Channel Imbalance: 0 Db Sampling Rate: 32-192 Khz Bit Rate: 16-24 Response Frequency: 20 Hz-20 Khz + / 0.7 Db THD: 20Hz-20KHz 0.25-0.065% THD + N: 1KHz 0.15% Analog Output Level: 2.2 V Analog Input Level: 1 V (3 Db) Case Size: Approx. 138.2 X 97.5 X 21.2mm/5.4 x 3.8 x 0.8in Working Voltage: Dc + 5 V Maximum Power Current: 210 mA Working Temperature: 0-70 ℃ Working Humidity:10%-80% Rh (no Condensation) Storage Temperature:-10-80 ℃ Store Moisture:5%-90% Rh (no Condensation) Connection and operation: 1. Connect the optical fiber or coaxial input interface of the converter to the optical fiber or coaxial output interface of the signal source equipment with optical fiber cable or coaxial cable. 2. Connect SW/CEN/SR/SL/FR/FL ports to the audio amplifier using audio cables. 3. Power the converter. 4. When 5.1 channels need to be output, dial the switch to the PASS position and set the signal source device to source output.(note: film source and signal source equipment support 5.1ch) 5. Switch to 2CH position when two channels need to be output (note: SW/CEN/SR/SL channel has no sound when the switch is switched to 2CH) Package List: 1 x Host 1 x Data Cable 1 x Description Note: 1. The optical fiber and coaxial interface of this product adopt automatic identification mode, coaxial priority, need to unplug the coaxial line or turn off the coaxial output equipment when using optical fiber channel. 2. Do not expose the machine to moist, high temperature, dusty, corrosive or oxidizing environment. 3. All components will be free from strong vibration, impact and falling. 4. Do not touch the power adapter plug with wet hands. 5. Please hold the plug when you unplug it.Do not pull the power cord directly. 6. Turn off the device when not in use for a long time. 7. Do not open the lid, and do not touch the internal parts. 8. Please use the original USB power cord. 9. Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.