Package List 1 x volume control Features -Color:Black automotive volume control -Size:400.00X3.00X3.00cm/157.20X1.18X1 subwoofer . - Remote Control: Easily adjust the volume of your car's amplifier subwoofer with the remote volume controller subwoofer controller. - Easy Installation: Simple installation steps enable users to quickly utilize the controller without requiring professional technical support Subwoofer inline volume control. - Strong Compatibility: Compatible with a wide range of car brands and models, catering to the needs of numerous car owners Subwoofer volume adjuster. -Material:PVC automotive supply - Ensures outstanding audio performance for your car's sound system with volume controller power amplifier volume adjuster. - Easy to maintain and clean, ensuring it stays in great condition for years to come power amplifier controller.Goods Descriptionamplifier volume control Fine workmanship, ensures practicality.subwoofer controller Features the PVC material, which has high durability, not easy to deform.power amplifier volume adjuster This amplifier controller is made of solid material, which can withstand long-lasting use