Ziocom Ground Loop Noise Isolator [ Eliminate the Buzzing Noise Completely while Playing Music ] for your Car Audio System/Home Stereo with 3.5mm Audio Cable Eliminating Buzzing Noise : Completely eliminating the buzzing noise caused by ground loops which happens when the audio source and the speaker use the same power source) in some car speakers / PC / home stereo systems when using the Bluetooth receiver. Working Principle : The working principle of this noise isolator is to achieve a clear speech/music by eliminating the current noise in some car speakers / home stereo systems. Compatible Models : Works with any portable device that has 3.5mm audio jacks, for your Car Audio System/Home Stereo, when grounding issues persist. Also used with a Bluetooth Receiver/Bluetooth Hands-free Car Kit in your Car Audio System/Home Stereo. Compact and Portable : Being so mini and light-weight, this little gadget does not take much space and can be easily taken away. Ground loop Noise isolator with a 3.5mm Audio Cable