RCA noise isolator is a portable design with cable which easy to install. To avoid AC acoustic interference caused by grounding problems and prevent damage to the input parts of the equipment due to excessive potential difference. Make it the secure transmission of audio signals Eliminate noise from the connection of cameras and audio equipment, Eliminate noise generated by the connection of simultaneous interpretation equipment to the mixer, Eliminate noise generated by laptops connected to mixers; Eliminate noise generated by the bass instrument connected to the mixer; Eliminates noise generated by devices and devices that are transmitted over long distances Eliminates noise caused by a mismatch between the device and the device's impedance Suitable for almost all large-scale outdoor performances, lightning protection, sound engineering, conferences and series of audio equipment systems such as entertainment venues and exhibition halls are protection and noise reduction equipment connected by audio and video systems.