Working Principle: This noise isolator eliminates current noise in car speakers and home o systems to deliver clear voice and music. Widely Compatible: Works with any portable device featuring a 3-pin XLR input and output, suitable for car o and home o systems where grounding issues occur. Easy to Use: Plug and play design requires no complicated setup—simply connect the ground loop isolator. Portable: Compact and lightweight, it saves space and is easy to carry. Type: o isolator Color: Black Material: Metal + plastic Package Contents: 1 x o isolator Note: The package includes only the items listed above. Other products are not included. Note: Lighting effects and display differences may cause slight color variations between the image and the actual item. Measurement may vary by +/- 1-3 cm.