1. Function: This product can be used as a signal router. You can place a TV in each of two separate rooms. You can turn on a TV in one room. When you want to change to another room to continue watching TV, simply turn off one TV, then turn on the other TV, and then route the signal to the TV in the other room. 2. It is suitable for connecting a device supporting HDMI to two visual output devices. 3. It allows the connection of HDMI devices with built - in HDMI interfaces, such as high - definition TVs, PlayStation 3, high - definition conversion DVD players, LCD screens, and projectors. 4. The gold - plated connector can provide good signal transmission. It allows the connection of HDMI devices with built - in HDMI interfaces, such as high - definition TVs, PlayStation 3, high - definition conversion DVD players, LCD screens, and projectors. It is a 1 - in 2 - out 4K HDMI distributor. At any time, usually only one output device can be in the active state. However, if the two TVs are of the same size, they may display images simultaneously when connected.