SERVE 4 DEVICES Simultaneously: 4 HDMI input ports & 1 output port?? connect up to 4 HDMI compatible devices?? such as HDTVs?? Blu-ray players?? Xbox?? PS3/PS4?? etc.</br>HIGH RESOLUTION: Support HD resolution up to 4K@30Hz(compatible with all lower versions)?? deep color?? as well as 3D compatibility.</br>PIP (Picture in Picture) FUNCTION: Contain 1 main screen and 3 sub- screens. Allow you to switch between the different device conveniently.</br>CONVENIENT USE: Easily switch by using the IR wireless remote?? no need to leave the comfortable couch.</br>ONE YEAR WARRANTY: 30 days money back?? one year free replacement.</br></br>Product Description</br></br><b>Features:</b><br> 1.4 HDMI input ports & 1 output port.<br> 2.HDCP 1.4 protocol compliant.<br> 3.3D HDMI 1.4a video format support.<br> 4.Support PIP (Picture in Picture)??