The BOSS GK5 7-string guitar divivded pickup kit allows you to flawlessly integrate the advanced GK-5 Divided Pickup system into your seven-string guitar. With expanded fingertip controls, you can utilize BOSS's innovative Serial GK digital interface while blending your guitar's regular pickup signal. Three switches give you instant access to control parameters on your GK device. A volume knob continuously adjusts synth level and other assignable controls. A three-way toggle lets you select GK, pickup or mixed outputs. An LED indicator shows when power is on.