Description: Wide Use: This RCA Audio Noise Filter Suppressor is designed for both car and home stereo systems. It effectively eliminates the humming and buzzing noise between the power supply and the amplifier.Passive Online Device: The Ground Loop Isolator works as a passive online device, providing an isolating circuit between the host and amplifier when used in car audio systems.Noise Isolating: The Car Audio Noise Filter effectively isolates and eliminates noise caused by ground loops in audio circuits through its 4 channel ground loop isolator. It ensures that the cover grounding on each audio cable is isolated from any device ground, which could potentially cause sound noise when amplified.Material and Size: This RCA Audio Noise Filter Suppressor is made from PP material for durability with dimensions of 10cm.Specifications: The RCA Audio Noise Filter is equipped with 2 RCA male connector and 2 RCA female connector, it has a rated current of 15A, rated input of 30W, and Peak input of 60W. Specification: Connector: 2 RCA male, 2 RCA femaleRated current: 15ARated input: 30WPeak input: 60W Size Chart: 10cm/3.94inch Package Includes: 1 Audio Noise Filter Suppressor Note: Please allow slightly errors 1-2cm differences due to manual measurement.