Universal Noise Sound Eliminator 4 Channel RCA Ground Loop Isolator Noise Filters For Car Radio Home Stereo System Features: OOTDTY Isolate and eliminate noise caused by a ground loop in an circuit with this Four-Channel Ground Loop 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 Dc impedance of the device is 100 ohms and the impedance is 3500 ohms at 1000 Hz. The nominal input power is 50 watts, with a maximum power level of 100 watts. Specifications: Color: Blue Voltage : 12V Input power:50 Max power:100 Cable Length:240mm Type:Line Noise Eliminator Connection: RCA 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 x 4 Channel Ground Loop Isolator _x000D_ _x000D_