General description Eliminates hum and buzz caused by ground loop problems in car audio systems. This passive device filters DC current in the signal path, ensuring a cleaner audio experience. Technical specifications Connectors: 2x male, 2x gold plated Color: Blue Material: Plastic Housing Size: About 90x50x23 mm Rated Power: 50W Maximum Power: 100W Other information Package Contents: 1x Car Audio Noise Filter Note: Light shooting and different displays may cause the color of the item to differ slightly from the real thing. The measurement allowed error is +/- 1-3 cm.