Kznifmk 1 Piece Ground Loop Noise Isolator Audio Buzzer Filter for PC

Pure sound quality. There is no harm to rock music, a better experience and can be used on mono. Works with any portable device with 3.5mm audio jacks for your car stereo/home stereo. Description: Remove humming. Eliminate humming noise caused by ground loops when the audio source and (some car speakers/home audio systems) use the same power supply to achieve clear music enjoyment, and from there the best will emerge. Easy to use, just plug and play, no battery required. This small and portable device does not take up much space and is easy to carry. This product can only eliminate noise and current noise caused by products with common power supply and common grounding, but not noise caused by other reasons. Therefore, you need to confirm that of the noise yourself.