1. It is ideally suited 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. 2. It employs a unique symmetrical characteristic impedance conversion transmission and analog audio spreadspectrum isolation technology, which features noise suppression and elimination functions. It can effectively resolve equipment distortion and audio noise caused by long audio transmission lines or ground potential difference loop currents, eliminating audio background noise and other phenomena. 3. Our versatile expander is compatible with 3pin XLR systems, microphones, or line levels, including 6.5mm and others. Enjoy balanced digital/analog transmission and clear, crisp, quality sound from residual noise in a variety of indoor and outdoor environments. 4. Our 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 port and routing all 4 signals through a shielded, balanced Ethernet cable to the other adapter. (RJ45 cable not included).