Amplifier Replacement Bass Knob Control Remote 4Pin Subwoofer Remote Volumes Adjustment Control Knob For Speakers _x000D_ _x000D_ _x000D_ Features: _x000D_ _x000D_ OOTDTY _x000D_ 2 kinds of Volumes adjustment. One is to increase the adjustment to make the song sound louder, and the other is to reduce the Volumes. Very comfortable and easy to adjust. _x000D_ Good material The controller is made from and plastic. The has good electrical conductivity for optimal transmission. _x000D_ The controller is easy to install without wiring. _x000D_ Simple installation, can be directly adjusted when installed. _x000D_ More convenient to adjust the Volumes of the Volumes. _x000D_ _x000D_ _x000D_ Specifications: _x000D_ Material:ABS _x000D_ Connector:4Pin _x000D_ Cable Length:Approx.4Meters/13.1Ft _x000D_ _x000D_ _x000D_ Package Includes: _x000D_ 1x Amplifier Bass Knob _x000D_ _x000D_ _x000D_ Note: _x000D_ Please allow 1mm errors due to manual measurement. _x000D_ Due to the difference between different monitors, the picture may not reflect the actual color of the item. _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_