Features: 1.Brand new and high quality car audio filter. 2.Eliminate the noise caused by car audio subwoofers, etc. 3.Improve sound quality to generate better sound effect. 4.Made of high quality plastic, wearable and durable. 5.Easy to install, just use after correct wiring. Specification: Features: Brand new and high quality car audio filter. Eliminate the noise caused by car audio subwoofers, etc. Improve sound quality to generate better sound effect. Made of high quality plastic, wearable and durable. Easy to install, just use after correct wiring. Specifications: Condition: Brand New Material: Plastic Color: Black Package Weight: Approx.68g/2.4oz Package List: 1 * Audio Filter PackageList: Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.