Clamps easily to bass bridge and removes easily. No drilling or tools needed. This transducer is a favorite for its ability to capture the full musical range of the upright bass - delicate tones to deep lows. * Includes the 3000A preamp. Preferred by bassist Terry Hale (George Strait). Pickup/Transducer clamp-style piezo bass transducer. Preamp 3000A piezo buffer preamp with EQ. * Attachable belt clip with one set of dual lock attachment strips. Velcro strap. Black metal strap mounting bracket with one set of adhesives.