With the Ibanez Shape Shifter preamp, you spend less time tweaking controls and more time playing. The 3-band tone control features a tone shaper that's much like the volume contour on your stereo. However, instead of just an on-and-off switch, the tone shaper features an actual loudness contour control so you can precisely determine the level of the contour and get the right sound. The SST, designed to complement the Fishman® Sonicore pickup, offers quiet operation and features a phase reverse switch for reducing feedback. A separate battery compartment allows for easy battery changes.