The WHD100M4 wireless HDMI transmitter and receiver kit from Purelink can extend 1080p signals up to 30m in the open and 10m through walls.
It operates in the 5GHz band to deliver uncompressed HD video and audio signals. The system’s discrete transmitter and receiver units are only 21mm deep and can easily be mounted behind a flatpanel display. The system is based on WHDI technology.
Also available is a 4x2 HDMI matrix add-on, allowing multiple sources to share the same transmitter unit.