Usage Tips:[192KHz Auto Decode] Build-in high performance RTOS and audio decoder chip,192KHz/24Bit; Support DTS/ for AC-3(LPCM/PCM/RAW).Support MP3,AC3,DTS,WAV,WMA,AAC,ALAC,FLAC,APE,OGG,M4A; [Multiple Interfaces&Automatic Recognize]Digital SPDIF(Toslink / Optical) and Coaxial input ports,6 Cinch channels output(FL, FR, SL, , CC, SUB) and 3.5mm stereo headphone port; Automatic recognize the input signal and automatically switch between optical and coaxial channel. [2 Audio Modes Switch&LED Indicator]One key switch for 5.1ch / 2.0 channel output;When you need 5.1CH,please switch on "5.1CH",and make sure your audio source has for or DTS format and correct settings on your devices by "RAW" or "Bitstream".Important Upgrade:By upgrade the products,there is also a LED indicator to check if the signals are 5.1ch or not on the front panel; [Volume Adjustable] A volume knob control to adjust the output volume,AV Amplifer is still required.NOTE: When you found volume is very low,please double check and ADJUST THE VOLUME BOTH OF your Audio Device and Amplifier.Once one of the volume output from audio device or amplifier is very low or in minimum status,the whole volume would also be very low. [High Compatibility] Anti-interference, small housing and metal case. Support for network player, HDTV, Blu-ray DVD, DVD,DM500S, DM800HD, game player consoles, PS2,, /Pro, , connecting to your AV audio amplifier,receiver(such as for ,), perfect for enjoying digital home theater and sound surround, etc. Material:Plastic + Metal colour:black Package Contents: 1 * 5.1CH Converter Audio Decoder 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.