A 50-100m wireless HD extender (also called a wireless HDMI transmitter and receiver kit) sends high-definition video and audio signals from a source (like a laptop, PC, or TV box) to a display screen up to 50-100m meters (328 feet) away without long physical HDMI cables. Usually Plug-and-Play with point-to-point connection, requiring no special Wi-Fi network, drivers, or software installation. Supports 1080P or up to 4K resolution depending on the specific model kit.