The Fishman Rare Earth Humbucking Soundhole Pickup provides quieter, more articulate amplification for acoustic guitarists who want the warm, full humbucker acoustic tones. Easy to self- install with no alterations to your guitar, (although the prewired output jack can be endpin mounted if you wish), you can plug in and play right out of the box. Two miniature batteries (included) fit neatly on the underside of the pickup and will give up to 300 hours of performance, and a volume wheel is conveniently located onboard. The Rare Earth name comes from the neodymium magnets (a rare earth element) which produce the excellent sound quality and string to string balance of this active, double coil magnetic soundhole pickup. This model also features a flexible cardioid microphone. The mic/pickup blend control offers precise manipulation right at your fingertips.