NAPHYLAIFA Universal Bass Knob Control for Car Amplifier, Bass Volume Knob with 4-Pin Extension Cable.

NAPHYLAIFA Universal Bass Knob Control for Car Amplifier, Bass Volume Knob with 4-Pin Extension Cable.

• PRECISION BASS CONTROL - This amplifier bass control knob is designed to solve the issue of unsynchronized volume between your car stereo and subwoofer, delivering the ultimate music experience with perfect bass adjustment.
• 4 PIN EXTENSION CABLE - The extra-long 3.5M/12FT cable allows you to connect the knob from your car trunk to the driver's seat, providing convenient control over your subwoofer's volume.
• EASY INSTALLATION -Simply plug the 4-pin crystal connector into your subwoofer's audio interface and connect the other end to the bass control knob. The built-in power indicator shows the connection status for hassle-free setup.
• HIGH-QUALITY MATERIALS - Featuring a pure copper core cable and high-quality insulated PVC protective coating, this bass control knob ensures durability and reliable performance.
• AFTER-SALES SERVICE - If you encounter any issues such as missing parts or a non-functional indicator, contact us immediately for a replacement or solution.We stand by our products with a full quality guarantee.