Ground loop isolator for home stereo - 2 PCS noise filter with cables Eliminating Buzzing Noise caused by ground in car speakers / home stereo .<br> No external power supply, this noise isolator can achieve a clear speech/music by eliminating the current noise in car speakers / home stereo .<br> Works with any portable device that has 3.5mm jacks, for your /Home Stereo.<br> and lightweight, it will not take much space and can be taken .<br> Item type:<br> Interface: 3.5mm<br> Frequency response: 20HZ-20KHZ<br> input: stereo<br> Size: 59 x 20 x 18mm<br> Material: Plastic<br> colour: black<br> Package Contents:<br> 2 x Ground loop noise isolators<br> Only the above package content, other products are not included.<br> Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.