Our versatile expander can be used with and other 3-pin XLR systems, microphones or line levels. Enjoy balanced digital/analog mission and clear, crisp, high-quality sound without residual noise in a variety of indoor and outdoor environments.Our two adapters mit 4 analog XLR audio signals through one RJ45 network cable, connect the audio of the mixer, microphone and instrument to the XLR port, and route all 4 signals to the other adapter through a shielded balanced Ethernet cable.(RJ45 Cable not included).It is ideal for sending stage lights or audio to a distant mixing console or lighting console. At the same time, it reduces costs and eliminates the clutter of multiple cables.It adopts balanced and balanced characteristic impedance conversion mission and analog audio spread spectrum isolation technology, which has strong anti-interference and capabilities. It can effectively solve the equipment distortion and audio noise caused by the long audio mission line or the ground potential difference loop current, and the audio background noise and other phenomena.Wide range of applications: Our network cable extender can provide fast equipment configuration for computer sound cards, active speakers, multimedia players, cameras, audio mixers, audio matrix switchers, audio separators, audio distribution amplifiers, set-top boxes, MP3 players, laptops, stereo audio amplifiers, audio switchers, integrated TV displays and other line-level audio devices. Plug and play. Colour:BlackMaterial:Iron Package Contents:1 x 4CH Audio/ Network Extender Female1 x 4CH Audio/ Network Extender Male Only the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.