Function: This product can be used as a signal router, you can have a TV in two separate rooms, you can turn on a TV in one room, when you want to change rooms to continue watching TV, just turn off one TV and turn on on another TV, then route the signal to your TV in another room.$Perfect for connecting an HDMI-compatible device to two visual output devices$Allows connection of HDMI devices with built-in HDMI ports, such as HDTVs, PlayStation 3, Upconverter DVD player, LCD screen and projector.$Gold plated connectors can provide better signal transmission. Allows connection of HDMI devices with built-in HDMI ports, such as HDTVs, PlayStation 3, up-converted DVD players, LCD screens and projectors. hdmi splitter 1 in 2 out 4k hdmi splitter$ Only 1 output device should be active at any time, unless both TVs are the same size, both TVs will display images when connected.