There are three regular pickups: bridge humbucking with no cover, middle single coil and neck humbucking with chromed cover. If that weren't enough, there's an accoustic pickup built into the bridge. A 5 way toggle switch lets you select different combinations of the regular magnetic pickups with at least 2 positions being out of phase. The 3 position switch selects either all magnetic, all accoustic or a blend of the two. The three rotary controls are for the accoustic volume, magnetic volume, magnetic tone.
The preamp requires a 9 volt battery. I can't stop playing this thing and keep switching between accoustic, magnetic and blended
modes. It's like having 3 or more guitars in one! Some of the reviews for this guitar said that the accoustic piezoelectric pickup
was really cheesy sounding. I find it to be awesome and it sounds like an electrified accoustic and totally usable for rythym or finger picking.
Usually I plug it into the Fender Hot Rod Deluxe amp but it sounds great in the Peavey Bandit Transtube also.
Definitely the best all around guitar I've ever owned.