This HDMI wireless extender includes transmitter unit and receiver unit, allows to transmit and extend HDMI signal up to 50 meters long away wirelessly, it has strong anti-interference ability by running at 5GHz operation frequency, and supports point to point connection. IR passback with 20-60KHz frequency helps to remote control the source device from the receiver side. It is really a very good solution for meeting, conference, home entertainment and multi-media education etc. Note: 1) Transmission distance will be different due to the environment. 2) Wall, brick or glass will shorten the signal cover range or cause big signal loss.