An HDMI Switch box is a device that allows you to switch HDMI routes between sources. An HDMi switch box allows you to switch between high definition video and digital audio signals. A common HDMI switch box would allow this between 4 sources by accommodating simultaneous connections of up to 3 high definition video sources.
An HDMI switch box will often come with a remote.
A word of warning regarding HDMI switch boxes is that incorrect usage could manifest in resetting / restarting both devices, or at worst, cause damage to the devices. Hot Plug action is therefore not recommended and it’s best to ensure that both input and output devices are switched off when plugging or unplugging HDMI cables.