Description: This is a Ground Loop audio Isolator, Acoustic Noise Filter, Eliminate audio current sound, Transformer signal noise reducer.Remove . Eliminate the noise caused by ground when the audio source and (some car speakers/home audio ) use the same power supply, so as to achieve clear music enjoyment, and the best will bloom from there. quality. There is no damage of rock music, a better experience, and can be used on mono. Easy to use, just plug and play, no battery required. Small and portable, this gadget doesnt take up much space and is easy to take .Works with any portable device that has RCA audio jacks, for your Car /Home Stereo.This product can only eliminate noise and current noise caused by common power and common ground , cannot eliminate noise caused by other reasons, so you need to confirm of the noise yourself.Specification:Model: input channel 2output channel 2Input impedance 600Output impedance 600Installation plug and play desktopFrequency response 20Hz-20KHzLevel Loss 0.03% @ + 22dBuInsulation resistance DC1000V 100MIsolation voltage AC 50Hz-60Hz/0V-1500VWiring port RCAWeight 100gDimensions: 72 x 40 x 25mm Hot swap support hot swapMaterial: Metalcolour: blackPackage Contents:1 x audio isolatorOnly the above package content, other are not included.Note: Light reflection and different displays may cause the color of the item in the a little different from the real . The measurement allowed is +/- 1-3cm.