The automotive volume control knob is designed to provide precise control over your car's audio system. It allows you to easily adjust the sound levels of your subwoofer and power amplifier, ensuring optimal performance. Its sleek and great design ensures it blends seamlessly with your vehicle's interior, offering both functionality and style. Features -Color:Black -Material:PVC -Size:400.00X3.00X3.00cm/157.20X1.18X1.18in -Audio settings: adjust the subwoofer volume to your liking, creating a unique and immersive music experience while driving. -Remote volume management: effortlessly control the subwoofer volume from your seat, enhancing convenience and ease of use. -Versatile for all driving conditions: ideal for both city and countryside driving, providing great music wherever you go. -Easytouse controller: the intuitive design ensures simple and efficient volume adjustments, giving you complete control. - performance: built for durability, this controller is resistant to damage, ensuring reliable and longterm use. Package list: 2 amplifier regulators