Radical Lace Alumitone electric guitar pickups have less resistance and higher output with clear, big frequency response in a completely noise-free passive design. Constructed with aluminum rather than copper, Lace humbuckers have a current-driven design as opposed to conventional voltage-based pickups.The Lace Alumitone humbucker"s aluminum water jet cut exoskeleton is mated with a micro-winding using 90% less copper wire than traditional designs. The result is an extremely lightweight and efficient pickup for your guitar. Sonically, Lace Alumitone pickups have more volume, more bass, and more mids with nice, clear, smooth high-frequency response that cuts.Lace accompanies the Alumitone humbucker with a 3-inch mini data CD with all its latest wiring diagrams in color along with Lace"s most current pickup and guitar catalogs. You also get a warranty card and other useful information about Lace Music Products.