PAKITE Wireless HDMI Transmitter and Receiver Supports 1080P Full HD 492FT Wireless HDMI Extender Kit for Laptop, PC to TV, HDTV, Projector Available for Home Theater, Conferences, Games

"IR Extension Cable Instructions for Use For optimal performance, we recommend adjusting the video output signal of your playback device to either 720p or 1080p.

To avoid signal interference, ensure the TX or RX is placed in an open area and kept 2-3 meters away from your wireless router."