The 120m HDMI Extender means that you can transmit a HDMI signal over Ethernet using the HDBit T transmission protocol. You can transmit a HDMI signal to a remote TV up to 120m away using a single Cat 5E or Cat 6 cable. The Plug & Play design is very easy to use simply connect both units to the HDMI devices connect the I/R adapters & plug them into the extenders. The extender can transmit 1080p 60 Hz up to 120 Metres using Cat 6 cable. Specification: Uses 1x CAT5e or CAT6 Cable (not supplied) to carry HDMI over long distances. Transmission distance can be up to 120 metres for 1080p using CAT6 cable 100 metres using Cat 5e or 80 metres using Cat 5 Supports 1080P resolution 50/60 Hz Supports HDMI loopback to a local TV no need to use an HDMI splitter Supports IR remote control over HDMI HDCP compliant Contents: Transmitter & receiver units 2x UK Power supply IR sender & receiver User manual Connection Diagram