Portable 2 Channels RCA Ground Loop Isolator Professional Hum Eliminator Audio Signal Isolator black.Features: [Ground Loop Isolator]: Our 2-channel audio signal isolator is designed to eliminate ground loop hum, ensuring a clean and noise-free audio experience. By isolating the ground loops that cause unwanted electrical interference, our isolator effectively eliminates buzzing and humming sounds in sound systems, conference microphones, audio players, and more. [Superior Sound Quality]: With i