Our versatile expander can be used with DMX and other 3-pin XLR systems, microphones or line levels. Enjoy balanced digital/analog transmission and clear, crisp, high-quality sound without residual noise in a variety of indoor and outdoor environments. Our two adapters transmit 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 unique balanced and balanced characteristic impedance conversion transmission and analog audio spread spectrum isolation technology, which has strong anti-interference and EMI capabilities. It can effectively solve the equipment distortion and audio noise caused by the long audio transmission line or the ground potential difference loop current, and eliminate 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:Black Material:Iron Package Contents: 1 x 4CH Audio/DMX Network Extender Female 1 x 4CH Audio/DMX Network Extender Male