1、Function: This product can be used as a signal router, you can have one TV in two separate rooms, you can have one TV in one room, when you want to switch rooms to continue watching TV, you only need to switch one TV Turn off and on the other TV, then route the signal to the TV in the other room. 2、Principle: Receives a signal from a device, such as a Bluray player, and directs it to one of the two output devices plugged into it. 3、Suitability: This HD Multimedia Interface splitter cable is perfect for connecting one HD Multimedia Interface compatible device (Xbox, Bluray, DVD player, PS3) to two visual output devices. 4、Compatible: Allows connection of HD Multimedia Interface devices with built in HD Multimedia Interface ports, such as HDTV, up converted DVD players, LCD monitors and projectors. 5、Note: Only 1 output device should be active at any one time. Unless both TVs are the same size, both TVs will display the image when connected. 1 x HD Multimedia Interface Splitter Item Type: HD Multimedia Interface SplitterProduct Material: Aluminum AlloySupport: 1:2 1080P HD OutputFunction: Output Video And Audio SynchronizationCompatible: Output Devices And Display Devices That Support HD Multimedia InterfaceInput Device Support: Laptop, TV Box, Desktop Host, Video Game Host, Etc.Output Device Support: Monitors, Projectors, HDTVs, Etc.