The Roland GK-3B pickup unlocks the door to synth-bass rigs for bass players everywhere. Bass players looking to expand their tone palette won’t want to miss this new pickup, designed for driving popular Roland V-Bass and GR-20 guitar synth products. Much smaller and thinner than its GK-2B predecessor, the GK-3B is similar to its guitar counterpart, the GK-3, but catered for bass players. Roland GK-3B Features