Up to 1000 hours of playing time from a single 9V battery

Buy at www.musicianscart.com LR Baggs iBeam Active Acoustic Guitar Pickup System with Volume Control,Quick and easy installation,All discrete Class A FET-based preamp for a naturally warm analog sound,Includes ibeam placement jig and peel-and-stick mounting adhesive,Natural string-to-string balance and dynamics,Fits most x-braced guitars with at least 3″ of flat open space under the saddle,Up to 1000 hours of playing time from a single 9V battery,Weighs less than 1/3oz