PRO-NEO-D01 - Single Coil?Brilliant and articulate single coil sound. 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.   ?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 Features stacked coils to eliminate noise