The Fishman Neo-D is a value-priced cousin of the famous Rare Earth pickup. The Neo-D shares the same neodymium magnet structure for exceptional string balance and sparkling acoustic clarity. The Neo-D"s low-profile, high-impedance design needs no battery. Easy installation with no alteration! Fishman Acoustic Guitar Pickups Acoustic guitar pickups are Fishman"s claim to fame, and for good reason. Fishman offers a wide variety of guitar pickup options to suit every type of player and instrument. And Fishman is the name behind the capable onboard electronics for many well-known guitar manufacturers.