Seymour Duncan Basslines APB-2 Lightnin' Rods active 4-string pickup for P-Bass. Designed to meet the needs of today's modern bassist who insists on an authentic, "original" look. The vintage pole piece design doesn't suggest that there's a highly sophisticated preamp under the cover, but there is. The tone is fat and with those famous "warm-and-woody" mids that P-Bass players adore. The fully discrete, ultra quiet, single battery preamp delivers low impedance output with excellent dynamic range. As a result of the micro power circuit design, you can enjoy up to 2,000 hours of continuous battery life. A wiring diagram and all necessary mounting hardware, pots and battery clip are included. Made in the USA.