Features: 

1. Two-Ports SPDIF (1 x Optical and 1 x Coaxial) digital audio input, one USB2.0 interface. You can switch freely between different signal sources.
2. Output 5.1 channel analog audio and 1 x CVBS , can be connect to the amplifier or TV
3. Uses 24 bit/96KHz audio DSP and 24bit /192KHz DAC
4. Support for multiple EQ model
5. Support digital audio formats: Dolby digital (AC3), DTS, LPCM
6. Support multimedia playback of USB disk, can play music, video, photo and text files
7. The USB port can provide charging for mobile devices
8. Automatic identification input digital audio signal format, automatic track test
9. Support stereo and 5.1 channel two output modes, can be flexible with speaker
10. High tone quality, low noise
11. One button to switch mode, simple to operate.
12. Support for remote operation, visual menu interface
13. Power-off memory 
14. DC5V/1A power adapter

Specifications:

Digital audio decode format...................................................Dolby Digital (AC3)/DTS/LPCM
USB playback music format.......................................................MP3 / WMA / AAC / WAV
USB playback video format.......................................................Divx3.11,4.x,5.x/Xvid/AVI/MJPEG/VOB/VCD(Dat)/MPG1,2,4 
USB playback photo format.........................................JPG (Resolution range: 16x16～10000x10000)
DSP sample frequency range...........................................................32～96 KHz
DSP Bit rate range.....................................................................16～24 Bit
Digital input level..................................................................0.1~1Volts p-p
Analog output level(1kHz@0dB)...............................................................1V RMS
SNR @ 0dB(CCIR/ARM)........................................................................≥85dB
Distortion...................................................................................≤0.1%
Frequency response........................................................................20Hz~20KHz
Max working current.............................................................................400mA
Power adapter format Input.........................................................AC 100V～240V 50HZ/60Hz, DC5V/1A
Operating Temperature range...............................................................-10 to +55℃
Storage Temperature range.................................................................-20 to +60℃
Operating Humidity range..............................................................10 to 90%RH (No Condensation)
Storage Humidity range................................................................5 to 95%RH (No Condensation)
Case Dimension (L x W x H)...........................................................139x64x22 (mm)
Weight......................................................................................210g