Two adapters transfer four analog XLR audio signals over a single shielded, balanced Ethernet cable (RJ45). They connect the XLR outputs from a mixer, microphone, or instrument to the adapter and forward all four signals to the remote unit. RJ45 cable is not included. The versatile expander supports 6.5 and other 3-pin XLR configurations, including microphones or line-level sources. It delivers balanced transmission for both digital and analog signals and provides clear, tight, high-quality sound with no residual noise across a wide range of indoor and outdoor environments. Ideal use scenarios: - Send stage audio or lighting signals from a stage area to a distant mixer or lighting console, simplifying cabling and reducing costs. - Run audio or control signals between rooms or over a venue footprint where long cable runs would be impractical with traditional wiring. - Use in outdoor events where weather and surroundings can introduce noise, while maintaining reliable, clean audio performance. Key technologies and benefits: - Unique symmetric impedance-transforming transmission and analog audio spread-spectrum isolation technology with noise suppression features. - Helps mitigate device distortion and audio hiss caused by long transmission lines or ground loop currents. - Reduces background noise and related audio phenomena, delivering better overall sound quality in challenging environments. In short, this system provides a compact, robust solution for multi-channel analog XLR signal transmission over Ethernet, with broad compatibility, strong noise rejection, and practical applications for stage, studio, and live event setups.