The SHR-1b Hot Rails is one of the highest output pickups offered by Seymour Duncan. It's a humbucker that fits into a normal single coil slot, so you get the noise cancelling effect without cutting a large hole in your guitar. The two thin blades with powerful coil windings give you the incredible sustain and a fat, full sound that's needed for playing heavier rock music. This pickup responds to the subtlest finger movements. Ceramic magnet. Rated at 16.9k Ohms. Four conductor cable for split/phase options. Bridge position.