From Fishman:

OPEN CORE CLASSIC HUMBUCKER NECK VOICINGS:

• Voice 1 (Vintage P.A.F.): The ideal, elusive P.A.F. neck tone with the dynamics and output level you want.
• Voice 2 (Clear, airy chime): A Fluence-exclusive neck tone, with unreal highs, vocal midrange, and tight lows.
• Voice 3: Clear, Vintage Single Coil.

OPEN CORE CLASSIC HUMBUCKER BRIDGE VOICINGS:

• Voice 1 (Vintage P.A.F.): The ideal, calibrated vintage PAF bridge humbucker tone at the perfect output level.
• Voice 2 (Classic Hot Rod): The quintessential hot rodded bridge humbucker tone without all the baggage.
• Voice 3: Slightly Overwound Single Coil.

FLUENCE OPEN CORE CLASSIC HUMBUCKER PICKUPS:

• Are Multi-Voice. Set and forget, or wire-up to toggle between two musically complimentary voices.
• Drop right in and replace standard humbucker pickups.
• Are rechargeable on your guitar. Optional lithium-ion battery pack offers weeks, not hours, of playing time.