Just passive EMGs.

The N and B probably just stand for bridge and neck.
Ive heard good things about them, but overall ive heard very mixed reviews.

He's laughing at YOU.
You better click that bastard.

Ibanez RG370DX
Peavey Valveking 112 (w/ Bad Monkey and GE-7 EQ)
I have the same pickups in my Schecter Damien, I really like them. Very soft, fluid cleans.