This HDMI wireless extender includes transmitter unit and receiver unit, allows to transmit and extend HDMI signal up to 50 meters long away wirelessly. This wireless extender not only supports point to point configuration, but also supports one to many (1 to 2) and many to many (2 to 2, 2 to 1) configuration has to be purchased separately. 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.