LinkS 4 port HDMI Switch 4K X 2K, 4 In 1 Out HDMI Switcher 1080P/HDMI 1.4a Supports 3D with IR Wireless Remote and picture in picture(PIP) function 4.4 INPUT PORTS: Expand the capabilities of your HDTV, connect up to 4 HDMI compatible devices for seamless transitions between gaming, television and more 5.WARRANTY:Compatible with HDTVs, Blu-ray players, Xbox, PS3/PS4, Apple TV,Roku and other HDMI devices; NOTE: Input display resolution must be less than or equal output display resolution.Press "Select"for 8 seconds to close PIP function. 2.RESOLUTION: Experience all your TV has to offer in brilliant 4K resolution, deep color, as well as 3D compatibility 1.PICTURE IN PICTURE (PIP): Enjoy 4 screens at once, PIP gives you the power to utilize all the devices connected to your HDMI switcher 3.REMOTE CONTROL: Never leave the comfort of your couch when switching between devices quickly and easily. Pull the insulating plastic off at the bottom of the remote.