RCA Audio Ground Loop Isolator Anti-Interference Noise Reducer for Clear Sound Transmission Stereo sound quality, delicate and transparent, effectively reduces interference noise in audio signal transmission RCA interface, plug and play, equipped with metal plug, no software required Compact, portable design, easy to use without batteries, space-saving Delivers pure sound quality, preserves audio integrity, compatible with mono channel applications Works with any portable device featuring a 3.5mm audio jack, suitable for car audio systems and home stereo setups Eliminates humming noise caused by ground loops when audio source and speakers share the same power source Designed to reduce noise and current noise resulting from common power and common ground setups; does not eliminate noise from other sources user must identify noise origin Weight: approximately 56g Dimensions: approximately 7.5 x 3.7 x 2.1cm