Check the listing for details. 4RCA Noise Filter Suppressor Ground Isolator Car Home Stereo System. Condition: New. Listed at 14.45 USD. 4RCA Noise Filter Suppressor Ground Isolator Car Home Stereo System Features: Isolate and eliminate noise caused by a ground in an circuit with this Four-Channel Ground Isolator. The isolator ensures that the shield ground on each cable is isolated from any equipment ground, which could cause audible noise when amplified. This device has four channels, composed of two pairs of stereo (L+R) inputs and outputs. The nominal for impedance of the device is 100 ohms and the impedance is 3500 ohms at 1000 Hz. The nominal input power is 50 with a maximum power of 100 Specifications: Color: Blue : 12V Input power:50 power:100 Cable Length:240mm Type:Line Noise Connection: Quantity:1Pc Note: 1.Transition: 1cm=10mm=0.39inch 2.Please allow 0-3cm error due to manual measurement. pls make sure you do not mind before you bid. 3.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes: (Without retail package) 1Pc 4 Channel Ground Isolator