The audio extractor is one device that can support 3D? 4KX2K?ARC and it allows the one HDMI or one MHL source input and one HDMI output connected to one HD Display (like TV or Projector) and extract the audio to one SPDIF audio out+One LR Stereo audio out. Also the device supports ARC function. Input: 1 HDMI A-Type Output: 1 HDMI+ 1SPDF+ LR Audio Out Support: CEC 4K*2K 3D Full HD 1080P, Full 3D,4K*2K resolution Support :ARC
