Fangrui Product Details Features: 1. Ground Ring Isolator/noise Filter Unreduced Bass Can Help You Reduce Noise From Car And Home Audio Electrical Systems, Providing You With Hifi Sound Quality Output. Solution To Car And Home Stereo Noise Problems. 2. Made Of High-quality Abs Fireproof Shell, Sturdy, And . 3. Plug And Play Design, The Audio Isolation Transformer Alternator Is Easy To Install Without Any Complicated Tools And Can Be Used After The And Cables Are Connected Correctly. White And Red. 4. Hifi Performance, The Ground Loop Audio Noise Reducer Can Be Used With Car Audio, Amplifiers, Speakers Or Mixers, With Stable Performance, High Precision And Reliability. Allows You To Car Speaker/home Stereo System And Enjoy Sound. 5. Wide Range Of Applications, Audio Noise Isolator Filter, Eliminates Ground Loop Noise Between The Audio Source And The Radio. For Portable Devices With Audio Outputs Home Stereo Speakers Amplifiers Equalizers And More. Description: 1. Material: Abs 2. Product Size: Shell Size: About