The Taylor ES1.3 AA/9V Acoustic Guitar Pickup System delivers exceptional acoustic amplification, retaining your Taylor's guitar natural tone. Designed by Taylor, the pickup system uses magnetic sensors in combination with a high quality preamp that produces clear audio with minimal feedback. Users can further taper their sound with the onboard 3-band EQ. The system offers up to 50 hours of performance and can be powered with either a standard 9-volt or AA batteries.