Car Truck Audio Filter Power Noise Reducer Ground Loop Isolator Suppressor FH-203 Description: This item eliminates ground loop noise between audio source and radio.It is a universial model that widely be used on most kind of passenge car. Features: 100% brand new and high quality Easy to install Reduce noise of igniter produces filtration effect Can effectively solve the problem of car audio noise Improve sound effect Specification: Model: FH-203 Voltage: 12V Net Weight: 100g Color: Main Unit(White), Cable(Blue) Package Include: 1 X Audio Filter 1 X Blue Cable