B-Band A3T Sidemount Preamp with Four Band EQ, Tuner, and Pickup (Narrow) Include updated 22R Under Saddle Transducer (UST) Pickup Includes A3T Onboard Preamp w/Volume, EQ Controls and Tuner Fits 3/32" (2.2mm) Saddle Width High Gain Before Feedback, Wide Dynamic Range 9-volt Phantom Power Option