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
• The humbucking model features stacked coils to eliminate noise