1. WisWinDa 3Pin XLR HiFi Stereo Version Audio Isolation Box Ground Loop Isolator/Noise Filter/Hum Eliminator Build-in Dual Audio Transformers for Audio System Eliminate Hum&Buzzing Noise (WDISO016S-XLR (Male-Female)) 2. 3Pin XLR Ground Loop Isolator/Noise Filter XLR 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 ground loop noise problems. 3. Build-in Dual Audio Transformers Hum/Buzz Eliminator have high quality aluminum shell, sturdy and resist, which has long durability. 4. Hot-swap Design--The Audio Isolation Transformer Alternator is easy to install, don’t need any complicated tools, it's coming with build-in Cord 11.8inch and it can be used after correct connecting XLR and 1/4”. Kind remind please confirm whether the product is suitable before buying. 5. 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. Used for portable devices that have XLR audio outputs Home Stereo Speakers Amplifier Equalizer ect. WisWinDa XLR HiFi Stereo Version Audio Isolation Box Ground Loop Isolator/Noise Filter/Hum Eliminator for Audio Player/Audio System Eliminate Hum&Buzzing Noise (WDISO016S-XLR (Male-Female))