Introduction: The HDmatters 6x2 HDMI Matrix supports the feature of PIP, ARC, 4K and 3D, which can switch or splitter the six HD input sources to the two HD Displays. It also can do the audio extract by the Optical port or HP port. ARC feature can let you return your TV audio to the av receiver; the PIP feature can let you choose the input sources channel by watch the small picture window at the Display. Splitter Mode The HDmatters 6-port Matrix is of a true HDMI matrix.It supports both Matrix and Splitter mode. under splitter model, the output A&B can display any of the 6 hdmi source simultaneously. Matrix mode Under HDMI Matrix mode, the output A and output B are working independently.That means output A and outpu B can display any of these 6 connected hdmi source. HDMI audio extractor This HDmatters 6X2 matrix supports HDMI audio extractor function. It lets you de-embed the audio from your HDMI video streams to create a distinct audio output that you can connect directly to a digital or analog audio device. It supports up to 5.1Ch audio extraction. 4K resolutions ready: The 6X2 HDMI matrix supports video resolutions up to 4K 30Hz (3840 x 2160). It lets you enjoy lifelike images with incredible contrast, brightness and color, and greater luminosity compared to standard digital imaging. PIP(picture in picture mode) HDMI Switch with PIP function supports up to 5 sub-screen and 1 main-screen displays, allowing you to multitask and switch between main displays with a single click on your infrared remote.(notes:PIP only works under Splitter mode) HDMI ARC Under ARC mode, the Matrix works as an hdmi arc converter. It is very easy to set up. Just connect the ARC port of your TV and the output A of the matrix with a qualified hdmi 1.4 and above cable. And then the optical output to your AV receiver's toslink in.And then all your need is to turn on the ARC features of your TV and our Matrix. Package contents: HDMI 6X2 Matrix mainbodyX1 IR remote controlX1(no battery) AC to DC power supplyX1 User manualX1