1. RJ45 connectors for professional audio, video, and network applications. XLR base connector with 3pin XLR and 6.35mm jack. Housing made of aluminum alloy, integrated, durable allmetal casing. 2. These two adapters transmit 4 analog XLR audio signals over a single RJ45 network cable, connecting audio from mixers, microphones, and instruments with XLR ports and routing all 4 signals through a shielded balanced Ethernet cable to the other adapter. 3. Connect multiple lighting consoles, microphones, instruments, speakers, and other audio signals with a single central cable. for sending stage lighting or audio to a remote mixer or lighting console—all while reducing costs and eliminating the clutter of multiple cables. (Cable not included, extension only). 4. Our versatile extender includes a 4channel extender compatible with 3pin XLR systems, microphone or line levels. Enjoy balanced digital/analog transmission and clear, quality sound without residual noise in a variety of indoor and outdoor environments.