This BOSS GK5-KIT-B bass guitar divided pickup kit gives you ultimate control over your bass guitar's tone. It flawlessly integrates BOSS's advanced GK-5B pickup with your 4, 5, or 6-string electric bass, allowing you to tap into a world of synth and modeling possibilities. Adjust the synth volume and control parameters on the fly using the GK volume knob and activate two assignable controls with the three-way momentary switch. You can blend the GK and standard pickup signals, or select them independently using the three-way toggle switch. Once installed, the system works seamlessly with your bass's existing pickups.