1. It utilizes a unique symmetric and symmetric characteristic impedance conversion transmission and analog audio spreadspectrum isolation technology, featuring noise suppression and elimination functions. It can effectively resolve device distortion and audio noise caused by long audio transmission lines or ground potential difference loop currents, eliminating audio background noise and other phenomena. 2. Two adapters transmit 4 analog XLR audio signals over a single RJ45 network cable, connecting the audio from mixers, microphones, and instruments to the XLR port and routing all 4 signals through a shielded, balanced Ethernet cable to the other adapter. (RJ45 cable not included). 3. It is ideal for sending stage lighting or audio signals to a remote mixing console or lighting console. At the same time, it reduces costs and avoids cable clutter. 4. The versatile expander is compatible with 6.5mm and other 3pin XLR systems, microphones, or linelevel signals. Enjoy balanced digital/analog transmission and clear, crisp, quality sound without residual noise in a variety of indoor and outdoor environments.