Fishman Onboard Aura - narrow pickup State-of-the-art onboard preamp featuring Fishmans patented Acoustic Imaging technology Download up to six Aura Images from the Aura Image Gallery software (included) Pickup/Image blend control and onboard chromatic tuner Volume, bass, middle, treble, and phase controls System includes an Acoustic Matrix Undersaddle Pickup and Switchjack Stereo Endpin Jack