Eliminated buzzing ground loop noise that could occur when the your audio source is connected to the playback device. When you plug this noise filter up and it will take the buzz/hum/static noise out of your home/car/rv/dj stereo speaker. Give you the clear music you deserve to hear

3.5mm/AUX input works with your phones, pc, laptop, smartphones, m3 player or dj speakers, party speakers

Easy to work with. Plus this ground loop isolator directly into car/speakers Aux port and connect the aux cable given into the audio source. Battery or tunning is not required. You can instantly hear the change to clear music

Unit it very small and portable. You can simple out in your front jeans pocket with your smartphone. Light weight makes it easier to carry

Manual, ground loop isolator, and Aux/3.5mm Cable included in the box