The LK-LKV312-HDbitT combines the extension and distribution functions to split 1 HDMI signal to 2 identical HDMI signals via network cable, to 2 receivers to transmit these 2 HDMI signals up to 120 meters. With the IR signal transmission to control the source device operation in long distance, it is widely applied in HD audio visual display room, HDTV, Set top box, DVD etc exhibition center and digital monitoring system.