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