This audio decoder can auto convert HDMI input to 5.1 channel analog audio output, and support decoding Dolby AC-3/ (include 5.1 digital audio streaming). So it is widely used in families, schools, squares, concert halls, cinemas and other public places to enjoy the shock effect of or Dolby. Build-in high performance RTOS operating system and audio decoder chip; support /AC-3. Specification: HDMI Input Resolution: Up to 3840x2160@30Hz;4096x2160@30Hz. Auto decode AC-3/ (LPCM/PCM/) input signal without any action. Adopt 6ch RCA/3.5mmHeadphone port output,convenient and efficient in use. Input: HDMI Output:HDMI;SW,CEN,SR,SL,FR,FL; 3.5mm Headphone Port HDMI Version:HDMI1.4b HDMI Input/ Output TMDS signal:0.5-1.5Volts p-p(TTL) Input/ Output DDC signal:5Volts p-p(TTL) Support Audio Format: MP3,AC3, ,WAV,WMA,AAC,ALAC,FLAC,APE,OGG,M4A Max Power Current:420mA Package Includes: 1x Decoder 1x USB Cable