This value-priced cousin of the award winning Rare Earth pickup 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. Available in Single Coil and Humbucking models. PRO-NEO-D02 - Humbucking-Warm and full humbucking sound. FEATURES: Neodymium magnet structure for exceptional string balance and sparkling acoustic clarity Low profile, high impedance design needs no battery Easy installation with no alteration plug & play right out of the box Excellent string-to-string balance and acoustic clarity Fits in soundholes as small as 3-7/8" (98.5 mm) diameter Humbucking model features stacked coils to eliminate noise