Easily adjust the olume of your car amplifier and subwoofer with this conenient remote controller. Manage your audio system while on the road.Customize the sound output to suit your preferences and enjoy a listening experience.Designed for car owners who appreciate quality sound, this ersatile olume controller is compatible for car audio systems and subwoofers. Perfect for those seeking to optimize their in car audio experience.Whether you are driing in on the highway, or going on a long trip, this remote olume controller is a practical addition to your car. Adjust the olume easily and safely without distractions, ensuring a pleasant journey.Take control of your car audio system with this remote olume controller. Fine tune the amplifier and subwoofer olume to create the perfect sound for your Upgrade your in car entertainment and on the road.Colour:BlackMaterial:ABSPackage Contents:1 x Amplifier Bass Knob1 x cableOnly the aboe package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.