Features: one pair as full functional module, no setting needed use cat-6/ 6e cable to substitute hdmi cable, achieve longer distance transmission transmission distance up to 30 meters for 1080p using cat-6 cable follow the standard of ieee-568b compact size, portable, no power supply needed connection: plug the hdmi transmitter into hdmi source connect single cat-6/ 6e cable to both transmitter and receiver plug the hdmi receiver into the hdmi display (such as hd-lcd, hd-dlp) specifications: support display: display device with hdmi female connector cables: cat 6 / 6e cable