This car audio amplifier knob is an essential tool for anyone looking to improve their car's sound system. Featuring adjustable audio potentiometers, it allows you to fine-tune the bass and volume levels for optimal sound quality. Whether you're listening to music or watching videos, this device ensures that you get the great audio . It's a must-have for any car audio setup. Features -Color:Black -Material:ABS -Size:7.60X6.90X3.20cm/2.99X2.71X1.26in -Tailored : the adjustable audio potentiometer allows you to adjust your car's audio settings to match your personal preferences and listening style -reliable and reliable: constructed from great abs material, this audio amplifier knob is built to withstand daily use while maintaining optimal performance -Enhanced bass output: the bass controller significantly boosts bass levels, delivering a richer and more impactful -Optimized for car audio systems: designed to work seamlessly with car audio systems, this amplifier improves both sound quality and volume, ensuring a topnotch audio experience -Elevated listening experience: by adjusting the audio settings, you can elevate the sound quality and overall audio experience in your car, making every journey more enjoyable Package list: 2 audio bass control knob