Eliminates hum and buzz to ground loop problems Filters DC current in the signal path Passive Device Connectors: 2x male, 2x ; gold plated Name: Audio Noise Filter Color: Blue Material: Plastic Housing Size: About 90x50x23mm Rated Power: 50W Maximum Power: 100W Package Contents: 1x Car Audio Noise Filter Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in a little different from the real thing. The measurement allowed error is +/- 1-3 cm.