1. RCA Ground Loop Isolator/Noise Filter RCA could help you to reduce the noise from the car&home audio electric system, gives you HiFi quality sound output. Perfectly solve car and home stereo noise problems. 2. Hum/Buzz Eliminator have high quality aluminum shell, sturdy and resist, which has long durability. 3. Plug&Play Design--The Audio Isolation Transformer Alternator is easy to install, don’t need any complicated tools, and it can be used after correct connecting RCA and cable White and Red. Kind remind please confirm whether the product is suitable before buying. 4. HiFi Performance--The Ground Loop Audio Noise Eliminator could work with amplifiers, speakers or mixers, with stable performance, high precision and good reliability. Let you eliminate car speakers / home stereo systems humming sound away and enjoy a perfect sound. 5. Wide Application-- Audio Noise Isolator Filter for Eliminating ground loop noise between the audio source and radio. Used for portable devices that have RCA audio outputs Home Stereo Speakers Amplifier Equalizer ect. WisWinDa RCA noise isolator is a portable design and easy to install.< br >To avoid AC acoustic interference caused by grounding problems and prevent damage to the input parts of the equipment due to excessive potential difference.< br >Make it the secure transmission of audio signals< br >Eliminate noise from the connection of cameras and audio equipment,< br >Eliminate noise generated by the connection of simultaneous interpretation equipment to the mixer,< br >Eliminate noise generated by laptops connected to mixers;< br >Eliminate noise generated by the bass instrument connected to the mixer;< br >Eliminates noise generated by devices and devices that are transmitted over long distances< br >Eliminates noise caused by a mismatch between the device and the device's impedance< br >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.